I was trying to explain to huski how I was attempting to teach Erik some self control and in the end videoed it. Well, at some point Erik hurt his mouth and there was a little blood. Erik was oblivious, but Kivi definitely noticed. It's only 13 seconds long, but I think it's really interesting to see Kivi's reaction.
http://www.youtube.com/watch?v=iAz-AiKhUtY