Guests listen to a instructional lesson on the use of a Taser C2 stun device during a Taser party in Phoenix, Arizona, May 22, 2008. Home sales parties began with Tupperware, cleaning products and lingerie, although the latest shocking trend blazing a trail in the United States is Tasers. Picture taken May 22, 2008. REUTERS/Jeff Topping (UNITED STATES) 

Dana Shafman (L) instructs Marjorie Bergman, of Scottsdale, on the proper gripping of a Taser before Bergman fires the stun device at a target during a Taser party at Shafman's home in Phoenix, Arizona, May 22, 2008. Home sales parties began with Tupperware, cleaning products and lingerie, although the latest shocking trend blazing a trail in the United States is Tasers. Picture taken May 22, 2008. REUTERS/Jeff Topping (UNITED STATES) 

Articles and product literature are placed on a table to be read during a Taser party at the home of Dana Shafman in Phoenix, Arizona, May 22, 2008. Home sales parties began with Tupperware, cleaning products and lingerie, although the latest shocking trend blazing a trail in the United States is Tasers. Picture taken May 22, 2008. REUTERS/Jeff Topping (UNITED STATES) 

Jason Richmond, of Tempe, Arizona, fires a TASER C2 stun device at a target during a TASER party in Phoenix, Arizona, May 22, 2008. To match Reuters Life! TASER-PARTIES/ REUTERS/Jeff Topping (UNITED STATES) 

Jason Richmond holds one of the metal probes contained in the firing cartridge of a Taser stun device during a Taser party in Phoenix, Arizona, May 22, 2008. Home sales parties began with Tupperware, cleaning products and lingerie, although the latest shocking trend blazing a trail in the United States is Tasers. Picture taken May 22, 2008. Lisa Cosovich (L) was one of the guests at the party. REUTERS/Jeff Topping (UNITED STATES) 

(L-R) Harry Saxen, Ben Carmody, and Dan Coury listen to self-defense instructor Danny Kessler during a Taser party at the home of Dana Shafman (background, right) in Phoenix, Arizona, May 22, 2008. Home sales parties began with Tupperware, cleaning products and lingerie, although the latest shocking trend blazing a trail in the United States is Tasers. Picture taken May 22, 2008. REUTERS/Jeff Topping (UNITED STATES) 

Marjorie Bergman (L), of Scottsdale, fires a TASER while Dana Shielder (R) watches during a TASER party at Shielder's home in Phoenix, Arizona, May 22, 2008. To match Reuters Life! TASER-PARTIES/ REUTERS/Jeff Topping (UNITED STATES) 

Taser products are displayed on the dining room table during a Taser party at the home of Dana Shafman in Phoenix, Arizona, May 22, 2008. Home sales parties began with Tupperware, cleaning products and lingerie, although the latest shocking trend blazing a trail in the United States is Tasers. Picture taken May 22, 2008. REUTERS/Jeff Topping (UNITED STATES) 

Dana Shafman (L) instructs Marjorie Bergman, of Scottsdale, on the proper gripping of a Taser before Bergman fires the stun device at a target during a Taser party at Shahfman's home in Phoenix, Arizona, May 22, 2008. Home sales parties began with Tupperware, cleaning products and lingerie, although the latest shocking trend blazing a trail in the United States is Tasers. Picture taken May 22, 2008. REUTERS/Jeff Topping (UNITED STATES) 

Maricopa County Sheriff's detention officer Ian Quaranta (L) talks to guests about safety and proper use of the stun device during a TASER party at Dana Shielder's (R) home in Phoenix, Arizona, May 22, 2008. To match Reuters Life! TASER-PARTIES/ REUTERS/Jeff Topping (UNITED STATES) 

Peter Cosovich (L) instructs Bonnie Anderson (C) on the proper gripping of a Taser C2 stun device as Ian Quaranta (R) watches during a Taser party in Phoenix, Arizona, May 22, 2008. Home sales parties began with Tupperware, cleaning products and lingerie, although the latest shocking trend blazing a trail in the United States is Tasers. Picture taken May 22, 2008. REUTERS/Jeff Topping (UNITED STATES) 

A TASER C2, spent cartridges and the probes that are attached to the insulated conductive wires fired from the stun device lie on the dining room table after being fired during a TASER party at the home of Dana Shielder in Phoenix, Arizona, May 22, 2008. To match Reuters Life! TASER-PARTIES/ REUTERS/Jeff Topping (UNITED STATES)