My dd (3.5 yrs) is very well behaved at school and has a generally sunny personality but she does have a bit of a temper when she gets home and is tired. At those times, she does try and hit me and my husband (and sometimes succeeds) although we do make it clear that this is unacceptable behaviour. The mother of a friend of mine says that if a child of 4 and over hits others then they have a psychological problem? Is this true? I know my dd is not yet 4 but she is mature for her age. Wasn't worried before, but I am now! Should I be???