ds ASD had massive meltdown yesterday when we stopped computer. He has become very obsessed and it had got to the stage of having to select new video every minute or so for him. I gave him a time warning and used timer to show it would be finishing but it didn't help. He banged on walls, doors, tried to bite me, hit self on chest and thighs. I tried to stop him but didn't hold him as this is liable to lead to him lashing out. He has bruised and scratched himself on his leg and I am very upset about it. We tend tbh to give in to avoid any upset and I think this is probably first time in an age that we didn't. I now think maybe we should have given in. Any advice?