Are they playing nicely or getting in trouble?

That is the question I am currently pondering. My children are in my daughter's room with the door shut. Last I looked they were both playing on her bed. Most times they are playing nicely but other times they are tearing things up, writing on walls, or getting into everything. My daughter loves to play with her little brother in her room. They play in her kitchen or doll house. My son shoves everything into the cupboards, oven, dishwasher, and other little compartments on the kitchen. Sometimes if my son does not go in there willingly she will try to drag him in there calling out, "Timmy, play." I guess I should go see what the verdict is.