I have a two year old that has a terrible temper, which I have been told is normal, but I don't think so. So out of my concern I have been telling him that it is ok to be "cross", but that you cannot kick, hit and scream (which is what he does). Even at his young age I have taught him how to take a "deep breathe" when he gets angry, and it is actually working! I usually do then suggest to him that he plays with his ball a bit, to help get the frustration out. It's so important that we work on through these emotions WITH our children when they are still young and fragile.