I have a four year old boy who seems to have no patience with a 15 month old girl I have in DC. Whenever the girl approaches him and happens to touch him he pushes her. Today she fell down beside him and her bum touched him. He kept pushing her down. This happened several times. I've given him repeated time outs, spoke to him about the girl just wanting to play. I've also told him she is little and she needs everyone help. His mom has also been told about his behaviour. This doesn't seem to help. He receives a timeout almost daily. He also has a sister that will be three next month that is here as well. She also receives daily time outs. I'm tired of dealing with these two. Should I preservere or terminate? Input please.