Sorry, quite long. I have a year 1 child who is pretty immature. He has only recently reached early years goals. He is impulsive and likes to play rough. We spend a lot of time talking about thinking before he acts, appropriate behaviour and discussing the rules and why we have them. I praise massively when he's doing the right thing and sanction accordingly when he's not. After the sanction, we chat about what went wrong and repair. Usually this works and we have a good relationship so he does try his best most of the time. Having said that, we're nearing the end of a very long half term, he's tired and behaviour has been escalating all week. Today, though, we had out some bikes, scooters and child cars. When I asked them to bring them to the shed to put them away, he started kicking the bikes, and then ended up picking up a car (I was pretty impressed with his strength!) and throwing it on top of one of the bikes. I reprimanded him and sent him to the headteacher with a post-it explaining the situation. In my eyes, it's attempted destruction of property and needs a severe sanction. The child came back a couple of minutes later with a smile on his face and all the head had said was 'don't do it again'. He then started with some pretty major disruption during the end of day story. I feel like he's learnt nothing and has lost any fear of punishment. Any advice on where to go with this?