For the record, all of his posturing about carrying a weapon is magnificently stupid. I know Johnboy reads this, but let's be clear:
If he has what people think he has, that's not a Taser, that's a stun gun. There is a difference, and it's an important one. Namely, using a stun gun on someone as a self defense option is an incredibly poor idea. It'll hurt like a bitch for a few seconds, but it does not disable someone and drop them into convulsions like you see on TV, those are full on Tasers and even those aren't as solid as people think (ask any cop who's had one fail on him).
The pain goes away the second the current is off, and they can still move while it's on.