Did you even read the article you linked to that says todays BB guns shoot around the same velocity as a .22 rifle? I guess all the people who would respond to an attacker armed with a .22 rifle are also just looking for an excuse to shoot someone. Those sick bastards.
I'm not saying to gun down everyone with a BB gun... I'm merely point out that saying people in this thread are just looking for an excuse to kill someone is a bit extreme, and uncalled for.