A demonstrator uses a sling shot during a protest against Chile's government in Santiago, Chile November 18, 2019. REUTERS/Henry Romero

A demonstrator uses a sling shot during a protest against Chile's government, in Santiago, Chile November 18, 2019. REUTERS/Pablo Sanhueza

An Iraqi demonstrator uses a sling shot under Al Jumhuriya bridge during the ongoing anti-government protests in Baghdad, Iraq November 3, 2019. Picture taken November 3, 2019. REUTERS/Ahmed Jadallah

An Iraqi demonstrator uses a sling shot during the ongoing anti-government protests in Baghdad, Iraq November 3, 2019. REUTERS/Ahmed Jadallah

An Iraqi demonstrator uses a sling shot during the ongoing anti-government protests in Baghdad, Iraq November 3, 2019. REUTERS/Ahmed Jadallah

An Iraqi demonstrator wearing a sling shot poses for a photo during the ongoing anti-government protests in Baghdad, Iraq November 3, 2019. REUTERS/Ahmed Jadallah

An Iraqi demonstrator uses a sling shot during the ongoing anti-government protests in Baghdad, Iraq November 3, 2019. REUTERS/Ahmed Jadallah

Iraqi demonstrators use sling shots during the ongoing anti-government protests in Baghdad, Iraq November 3, 2019. REUTERS/Ahmed Jadallah

An Iraqi demonstrator uses a sling shot during the ongoing anti-government protests in Baghdad, Iraq November 3, 2019. REUTERS/Ahmed Jadallah

Demonstrators use a sling shot as protests against high living costs continue, in Santiago, Chile October 22, 2019. REUTERS/Pablo Sanhueza

An anti-government protester uses a sling shot during a demonstration in Wan Chai district in Hong Kong, China October 6, 2019. REUTERS/Athit Perawongmetha

Anti-government protesters use a sling shot near the Legislative Council building in Hong Kong, China, September 29, 2019. REUTERS/Athit Perawongmetha

Aug 31, 2019; Champaign, IL, USA; T-shirts are sling shot into the stands during the first half during a game between the Akron Zips and the Illinois Fighting Illini at Memorial Stadium. Mandatory Credit: Patrick Gorski-USA TODAY Sports

A Palestinian protester holds a sling shot during clashes with Israeli forces near Ramallah, in the Israeli-occupied West Bank March 15, 2019. REUTERS/Mohamad Torokman

A Palestinian uses a sling to hurl stones at Israeli troops during a protest calling for lifting the Israeli blockade on Gaza and demand the right to return to their homeland, at the Israel-Gaza border fence, east of Gaza City September 14, 2018. REUTERS/Mohammed Salem

Palestinian demonstrators hurl stones at Israeli troops during a protest demanding the right to return to their homeland, at the border fence between Israel and Gaza, in the southern Gaza Strip August 24, 2018. REUTERS/Ibraheem Abu Mustafa TPX IMAGES OF THE DAY TPX IMAGES OF THE DAY

A Palestinian demonstrator uses a sling to hurl stones at Israeli troops during a protest ahead of the 70th anniversary of Nakba, near the Jewish settlement of Beit El, near Ramallah, in the occupied West Bank May 11, 2018. REUTERS/Mohamad Torokman TPX IMAGES OF THE DAY

A Palestinian demonstrator uses a sling to hurl stones at Israeli troops during a protest ahead of the 70th anniversary of Nakba, near the Jewish settlement of Beit El, near Ramallah, in the occupied West Bank May 11, 2018. REUTERS/Mohamad Torokman

A Palestinian demonstrator uses a sling to hurl stones at Israeli troops during a protest ahead of the 70th anniversary of Nakba, near the Jewish settlement of Beit El, near Ramallah, in the occupied West Bank May 11, 2018. REUTERS/Mohamad Torokman

A Palestinian protester uses a sling shot to hurl stones towards Israeli troops during clashes as Palestinians call for a "day of rage" in response to U.S. President Donald Trump's recognition of Jerusalem as Israel's capital, in the West Bank city of Bethlehem December 8, 2017. REUTERS/Mussa Qawasma

A Palestinian protester uses a sling shot to hurl stones towards Israeli troops during clashes as Palestinians call for a "day of rage" in response to U.S. President Donald Trump's recognition of Jerusalem as Israel's capital, near the Jewish settlement of Beit El, near the West Bank city of Ramallah December 8, 2017. REUTERS/Mohamad Torokman

A demonstrator uses a sling shot while clashing with riot security forces during a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela, August 12, 2017. REUTERS/Andres Martinez Casares

A Palestinian protester uses a sling shot to hurl stones at Israeli troops during clashes near the border between Israel and Central Gaza Strip August 4, 2017. REUTERS/Ibraheem Abu Mustafa

A Palestinian protester uses a sling shot to hurl stones at Israeli troops during clashes near the border between Israel and Central Gaza Strip August 4, 2017. REUTERS/Ibraheem Abu Mustafa

A demonstrator uses a sling shot while clashing with riot security forces during a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela, July 22, 2017. REUTERS/Ueslei Marcelino

A demonstrator uses a sling shot while clashing with riot security during a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela, July 22, 2017. REUTERS/Andres Martinez Casares

Demonstrators use a giant sling shot while clashing with riot security forces during a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela, July 22, 2017. REUTERS/Ueslei Marcelino

A demonstrator uses a sling shot while clashing with riot security forces during a strike called to protest against Venezuelan President Nicolas Maduro's government in Caracas, Venezuela, July 20, 2017. REUTERS/Carlos Garcia Rawlins

A demonstrator uses a sling shot during clashes with security forces at a rally against Venezuelan President Nicolas Maduro's government in Caracas, Venezuela July 9, 2017. REUTERS/Christian Veron

A demonstrator uses a sling shot during clashes with security forces at a rally against Venezuelan President Nicolas Maduro's government in Caracas, Venezuela July 9, 2017. REUTERS/Andres Martinez Casares

A demonstrator uses a sling shot during clashes with security forces at a rally against Venezuelan President Nicolas Maduro's government in Caracas, Venezuela, July 6, 2017. REUTERS/Andres Martinez Casares

Demonstrators use a giant sling shot while clashing with riot security forces during a rally against Venezuela's President Nicolas Maduro's Government in Caracas, Venezuela, June 23, 2017. REUTERS/Marco Bello

Demonstrators use a giant sling shot while clashing with riot security forces during a rally against Venezuela's President Nicolas Maduro's Government in Caracas, Venezuela, June 23, 2017. REUTERS/Marco Bello

Demonstrators use a giant sling shot while clashing with riot security forces during a rally against Venezuela's President Nicolas Maduro's Government in Caracas, Venezuela, June 23, 2017. REUTERS/Marco Bello TPX IMAGES OF THE DAY

Demonstrators use a giant sling shot during a rally against Venezuela's President Nicolas Maduro in Caracas, Venezuela, May 26, 2017. REUTERS/Marco Bello

Demonstrators use a giant sling shot while clashing with riot security forces during a rally against President Nicolas Maduro in Caracas, Venezuela May 24, 2017. REUTERS/Carlos Garcia Rawlins

Demonstrators use a giant sling shot while clashing with riot security forces during a rally against President Nicolas Maduro in Caracas, Venezuela, May 24, 2017. REUTERS/Carlos Garcia Rawlins

Opposition supporters uses a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 18, 2017. REUTERS/Carlos Garcia Rawlins

Opposition supporters uses a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 18, 2017. REUTERS/Carlos Garcia Rawlins TPX IMAGES OF THE DAY

An opposition supporter uses a sling shot while clashing with riot security forces during a rally against President Nicolas Maduro in Caracas, Venezuela, May 18, 2017. REUTERS/Carlos Garcia Rawlins

An opposition supporter shows a sling shot built to resemble a gun during a rally against President Nicolas Maduro in Caracas, Venezuela, May 15, 2017. REUTERS/Carlos Garcia Rawlins

An opposition supporter shows a sling shot built to resemble a gun during a rally against President Nicolas Maduro in Caracas, Venezuela, May 15, 2017. REUTERS/Carlos Garcia Rawlins

A female protester uses a sling to hurl stones towards Israeli troops during clashes at a protest marking the 69th anniversary of Nakba, near the Jewish settlement of Beit El, near the West Bank city of Ramallah May 15, 2017. REUTERS/Mohamad Torokman

A Palestinian protester uses a sling to hurl stones towards Israeli troops during clashes at a protest in support of Palestinian prisoners on hunger strike in Israeli jails, near the Jewish settlement of Beit El, near the West Bank city of Ramallah May 11, 2017. REUTERS/Mohamad Torokman TPX IMAGES OF THE DAY

Opposition supporters use a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 10, 2017. REUTERS/Carlos Garcia Rawlins

Opposition supporters use a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 10, 2017. REUTERS/Carlos Garcia Rawlins

An opposition supporter shows a steel ball used in sling shots while clashing with riot security forces during a rally against President Nicolas Maduro in Caracas, Venezuela, May 10, 2017. REUTERS/Christian Veron

Opposition supporters uses a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 10, 2017. REUTERS/Carlos Garcia Rawlins

Opposition supporters uses a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 10, 2017. REUTERS/Carlos Garcia Rawlins

Opposition supporters uses a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 10, 2017. REUTERS/Carlos Garcia Rawlins

Opposition supporters use a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 10, 2017. REUTERS/Carlos Garcia Rawlins

Opposition supporters use a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 10, 2017. REUTERS/Carlos Garcia Rawlins

Opposition supporters uses a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 10, 2017. REUTERS/Carlos Garcia Rawlins

Opposition supporters uses a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 10, 2017. REUTERS/Carlos Garcia Rawlins

Opposition supporters uses a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 10, 2017. REUTERS/Carlos Garcia Rawlins TPX IMAGES OF THE DAY

Opposition supporters use a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 10, 2017. REUTERS/Carlos Garcia Rawlins

Opposition supporters uses a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 10, 2017. REUTERS/Carlos Garcia Rawlins

Opposition supporters uses a giant sling shot to throw a "Poopootovs", a bottle filled with feces, which is a play on Molotov, during a rally against President Nicolas Maduro in Caracas, Venezuela, May 10, 2017. REUTERS/Carlos Garcia Rawlins

A demonstrator uses a sling shot during a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela April 10, 2017. REUTERS/Carlos Garcia Rawlins

Children fix a slingshot at a shelter set up in the Lycee Philippe Guerrier ahead of Hurricane Matthew in Les Cayes, Haiti, October 3, 2016. REUTERS/Andres Martinez Casares