I was concerned that they might do damage elsewhere if they got a bit more hyper. My friend apparently used to tap on restaurant windows with something on a string and then run off. I suppose I was a bit more concerned this week than I would have been a fortnight back. I seem to have a memory from somewhere that catapults are not allowed any more. My William Brown bit of brain seems to remember feeling this was a bit uncalled for as a law. See how mixed up I am?
Richard, next time I will remember my camera. I suspect the flash might have a deterrent effect. Unless it escalates things.

Penny