My son has been attending nursery, half day Monday, full day Tuesday, full day Thursday and half day friday, he was 3 in July, two weeks ago, when I collected him I was told he had refused to sit down during story time and refused to do anything staff had asked and had been shouting lots, I addressed this with him and my husband and I have been continuing to talk to him about right and wrong and listening and doing something when someone asks or stopping if someone says to stop etc, he had been fine until I got a phonecall Tuesday asking me to collect him as he had randomly gone to bite a child and when a staff member said no, he hit them and started screaming. My husband collected our son, and spoke with staff who described him as unpredictable and weren’t happy, they stated there had been no triggers for the biting. My son has taken a year to settle in as very clingy. We have now changed nursery as we hadn’t been happy at his existing one anyway and the latest incident made us wonder whether our son had been enjoying it. He had never ever bitten, at home he will sometimes shout or get upset if we say no but we will address this straight away and calm him down. I have ordered some children’s behavioural books to reinforce positive messages with him around listening and tantrums. I have also spoken with the HV who has arranged for a nursery nurse to visit us next week and observe our son at home to see if she can give any further tips. Am I unduly worried or should I be concerned as I feel like we are failing as parents, he always plays lovely with friends, I’m not sure what else we can do and whether we should be concerned whether there is something wrong?