My son came home and had a bag full go wet clothes from weeing himself, he's been potty trained for a while now. This happened before a few weeks ago, took him to get a uti test came back negetive. So brushed it off as a flook. Asked him today if his teachers are nice thinking he may be anxious for some reason, he said no and I asked why not. He imitated smacking the side of his head. I asked if he is sure his teacher does that, he said yes. I asked by accident. He said it happened two times and happened before and she does it to his friends sometimes. He is speach delayed so it's hard to ask questions that are not yes and no really. What's the best thing to do? I don't want to accuse anyone of anything but he's never said anything like this before. I even asked does mummy hit you ( I don't) and he said no so I don't think he's making this up personally but my partner said its hard to say anything cause of his speach delay.