I have a 20mo old son who has a terrible habbit of hitting when he's upset or frustrated.  I do not hit in my home (minus the rare occasion when he gets a hand smack for pulling/chewing on wires) He is in daycare fulltime and from what the daycare provider tells me he does not have this issue there.  I've tried several different things to correct this and nothing has worked. I've tried holding his had and looking him in the eye saying "we don't hit we do nice" and then take his hand and "pet" who/what he just hit.  I've also tried to distract him with something (food/toy) to get his attention elsewhere.  I'm at a loss and the hitting is emotionaly draining on me. I understand it's a way to express himself since he can't communicate very well with words, but being hit in the face if getting old real quick.  PLEASE HELP!!!