My nephew just turned six. He spends a lot of time in our house and I start to worry for him. He has some very strange mannerisms. For example when he is talking to me or especially my kids, he shuts his eyes, sort of puts his face into your face and shouts, he is also trying to spit while doing it. He is constantly patting me and DH on the head, bang his head on my shoulder, etc. He often hits his parents and gets time out, but it never really helps. At my son?s birthday party he annoyed his classmates so much, one kid was actually crying because nephew was biting him and spitting into his face. He is attending a very good private school, and according to SIL doing brilliantly, with a reading and spelling age of a 9 year old. Honestly, very hard to believe, as I never manage to have a proper conversation with him, he talks like a 3 year old, but I don?t think SIL would lie to me. Can it be some autistic disorder? Or just a spoilt 6 year old?