> people getting head injuries when getting zapped is pretty common

This scares the shit out of me, more than getting shot by a cop. Cops use tasers a lot more freely than guns, very frequently using them when there is no plausible threat to themselves or anybody else. They're allowed to get away with it because tasers are "less lethal." All it takes is one bad fall to turn you into a brain scrambled imbecile who can't tie your own shoelaces anymore but much of the public doesn't seem to understand this and are unsympathetic to these sort of concerns. At least with guns, people understand the gravity of the matter.