Today while Emma was doing her math, Sarah came up to her and started smacking end eventually bit her. Not a little bite either. A dig your teeth in and pull bite. It broke the skin. Why did this occur? Often Emma will take something of Sarah's and laugh while Sarah tries to get it back. This time however, I believe Sarah just thought Emma took something and skipped the double dare and went straight for the double dog dare. There was much screaming and crying and time out.