My older two have a hard time with this as well. They get into playing and they forget how to be nice. We normally just tell them that they need to calm down some and remind them that they need to play nice. Other than that, I have no idea. We try not to wrestle with them for that reason.....it normally turns bad quickly!!!
You might also wanna ask the ladies on the
Preschool Board. They might be able to help you as well!!
Angie