Another good cure for those pesky punks on Jet ski's or other devices is t just huck a large bobber at 'em. They'll think its a bomb or something and they'll scram in a hurry. Imagine a 2" red globe approaching your head at 30mph!?!?!?!

I've also sent a 6 inch plastic worm flying in their direction with the hook point cut off and a 1/4 ounce bullet weight attached. The look in their eyes is quite satisfying!!!

Sushi, try Lake Wilderness in Maple Valley.