R.B.
My son is like "Blake". My nephew though is very standoffish. They recently spent two weeks together and after about the first week my son got nicer, and my nephew got tougher. By the beginning of the second week they were about equal in the pushing, throwing, hitting...it actually was a good balance. When they both got home they went back to being their sweet selves. Maybe it is just the competition between boys? It has been two months and my little boy doesn't hit or throw things anymore. We were constantly "training" him to not hit, it took that long for it to leave him though. So if these parents are working with him, he will get better.