my ds is 7yo and has always taken care of his toys quite well. recently he became friends with a new boy at school and on each occasion the friend has been here, toys have gotten broken or gone missing. i have resorted to removing ds's favourite ones before he comes over, but yesterday when my back was turned, he went into my room (which they were told not to play in) and found ds's portable dvd player, which he proceeded to bang against my wall... hence it being broken now. ds is absolutely distraught and i am furious. i told his mum that i expect them to pay towards a new dvd player as we can't afford to replace it and that he is not back here until he learns to behave. i'm not so precious about our things to not expect the odd breakage here or there, but only when it's an accident. feel awful, but as far as i know he does not come from a bad home and behaves himself when he's at school, so apart from them living in a smashed up house, i can't see how he can get away with behaviour like this. am i expecting to much from a 7yo or is this typical behaviour?