I go w/the Super Soaker, although I wouldn't use the Super Soaker Aquashock Hydroblitz
for little kids, definitely teenagers (they deserve it).

I would prefer the Super Soaker Botttle Shot for the little tykes.

Now if you don't want to be arrested for actual murder, then I would have to go back to the Super Soaker Aquashock Hydroblitz again or perhaps a tranquilizer dart to slow them down. (If they are exhausted, they will probably thank you once they are finished ranting and raving. You might have to mention that to them.) Then you can always take their cash–be nice and pass on the credit cards.

(If your intention is to actually use real bullets, aim for a muscle as opposed to an artery to avoid a charge of manslaughter or murder. Then you can choose a suitable weapon depending on the distance.)

And, I know I don't need to remind you that shooting them while driving is not a good idea unless your intention is to "hit" a large number of targets. Shooting them in a large open field is perfectly acceptable (there is a proper etiquette to these things).