I pretty much agree, Pax. Morally *if* a taser will stop the bad guy, it's preferable to killing him. Tasers are also not Star Trek phasers on stun devices -- not yet, and maybe not ever. But would be nice to have something like that as an alternative to a gun when you're trying to stop someone from harming or killing you or another innocent person.
My personal reaction to tasers is overwhelmingly negative because of bad associations with the way that some of the earlier models were used, usually in other countries, as torture devices. I was almost electrocuted as a child, by a jolt that "froze the connection" as you put it. I know what the general feeling is like. I won't touch a cattle prod even around cattle either, for the same reasons. It's irrational, but feelings aren't rational.