If you aren't familiar with Larry Hickey, he is a shooting instructor affiliated with Tactical Response. A respected and knowledgable figure in the shooting instruction community within Arizona, he had to defend himself in his own driveway against 3 attackers in Tucson where he lives, November of 2008. The case is instructive because, although Larry was completely within his rights and the law, even choosing to disarm and render aid to his assailants after he wounded them, he was prosecuted zealously - twice!! Ultimately, he won the case. But aside from causing concern about ever having anything happen to you in Pima County (the gubbamint folks there just do NOT like gun people or respect their rights), it also shows how simply being right isn't always enough.