I fish from shore, so jet skiers don't bother me too much. For some reason, electric / gas powered model speedboats are kind of popular where I live right now.
Three times in the last month I have been fishing and someone had decided to drive their boat going 35-40mph and do figure 8 type formations in front of me. At that point I stopped fishing for fish, and was honestly trying to snag me a boat.
That happened on a nearby muskie lake. Went to court and the musky angler lost. Jet skier had to have stitches.
Muskie tackle like a 10" Believer work wonders on jet skiers!