My next door neighbours have a son and nephew aged between 10-13 who play football in between our two houses which is fine but the ball constantly goes into our garden or into our (crumbling) shed.. I know kids are kids and this can't be helped so I always pass it back to them if they knock the door and we're in but I've noticed a few times that balls are in are garden in the morning or they've asked for them as I've just left the house and when I get back they have disappeared later that afternoon and they are playing with them again.. There's no gates into the garden so I'm assuming they have climbed over the wall.. AIBU to be annoyed by this??
I have asked them not to but don't particularly want to ask their parents as we don't get along at best of times
(And the side where they would be climbing over from is full of junk where they could get hurt and no doubt it would be our fault!)