2.7 Million StunGun/100,000 StunGun Question!? **Advice from Professional's or Experience or User's**?

Stun guns, including Tasers as of 2010, can be purchased and possessed by anybody 18 or over (with the exception of those convicted of some offenses), or those who are 16-17 with parents written permission, under CA law. They can be used only for self defense.