My grandsons behaviour can be very challenging and were looking for techniques to manage his behaviour. Whenever he has a privilege removed for misbehaving ( hitting his sister, refusing to go to school, swearing) he will continue misbehaving as he said theres no point being good as he is already not allowed on his PlayStation until X day. He then refuses to go in school and then trys to make a deal with my daughter and says I'll go in school if you let me on my PlayStation. She says no and then he kicks off. She had to call the police recently which is heartbreaking. He has been being waiting to be assessed for ASD for years but CAHMS are atrocious but that's another matter. What I am looking for is advice on how to break the cycle of his behaviour from any parents who have been in a similar situation. Thanks x