I'd spend a few nights laying in wait with a 12 gage full of rock salt and put two in each of their hind ends. Nothing like a few ounces or holy crap that hurt like a mofo but can't kill me to put the fear of god in a teens butt. I know it worked back when we were allowed to actually correct your neighbor's kid when they screwed up without worrying if they parents were going to get all butt hurt and sue you. In fact, I'm going to go get some rock salt shells today. Or I'll make sum if need be. But the little bastards need a lesson in respect for other people's property.
'88 YJ with SOA and SYE and a bunch of custom crap from BWF in Chesapeake.
'97 XJ on 8" lift, double triangulated rear, long arm 3 link front, Eaton/60 with 5.14 gears.