a few years ago now my Mum (now deceased) was enjoying pottering round her garden; she noticed some of the peonies by our gate had been deliberately decapitated and scattered on the ground .. far too many to have been done by wind etc. some small kids from down the street came up (outside the gate) and taunted her "have you lost your flowers missus" that sort of thing, so she politely said, "why, do you know anything about it - I think someone has been in our garden" and they replied "ha ha ha, you cant touch us" I was down our path before they could scatter and made a grab for one of them, who managed to evade me, but i chased the little scamp right down to his house door and although he had disappeared round the back I pounded on the door and told his mother if he trespassed in our garden and destroyed any more items I would come back and wallop him. And I meant it! He never came near again.