My son has ASD and can get very over excited. He gets so excited he doesn't know what to do with himself. He starts flapping, making noises and cuddling. Although this doesn't sound too bad he is a big lad and doesn't know his strength. He can almost knock an adult over when he lauches himself into a hug and I am concerned when he does it to children incase he accidently knocks them over. It can also get quite annoying for other children, espcially if they are smaller than him.