ds1 is 4 - vcery big for his age - 3 weeks ago dislocated ds2 (2 and a half) elbow - rough and tumble - thought I had got through to him - did exaclty the same thing to him yesterday. Shows not even a trace of apology, just laughs - I have NO idea how to handle this. I am so angry with him I could easily explode. i am on my own.