Know this has prob been asked before but couldn't find my exact question. Ds (18 months) learnt how to unfasten his car seat yesterday. I don't want to get into tying stuff around the fastening bit (for obvious safety reasons) and was wondering how successful people have been in rollocking them out of opening it?! I really really told him off after he had done it and he was very upset and I know he understood what he had done wrong but later just undid it again. I think he had honestly forgotten he wasn't supposed to open it. Is there any way round this, I don't want to be constantly worried while I am driving that he's going to do it again.