
We have had trouble with vandals too, in fact I lost all my pumpkins one year to them. since then whenever I went back to my allotment I had a bit of dread, wondering if they had returned. It was probally teenagers I imagine.
I can totally understand where stew (muddypaws) is coming from with rites of passage theory. I was slowly coming to similar conclusions myself. Perhaps vandalism is more about empowerment? As a teenager you become more aware of all the things that you can't do until you are 16 or 18 or in the states 21. - So what do you with a society that 'cages' you, why you fight against it in the only way available - breaking stuff.
Not really coming up with a method to combat it, just another reason that it goes on.