I was off work yesterday & noticed that Levi has a notch in his ear that I know he never had before. I'm sure it came from playing to ruff (or maybe even fighting) with one of the other two. It makes me a little sad because he tends to let them get away with murder & I worry they are picking on him when I'm not there. The only thing I ever see is that if they are done eating & he is not they walk up to him & he runs away from his bowl. Also, if he is on my lap & one of the other 2 come up to me he jumps down. At any rate my only question is do I need to watch out for anything with his ear? It's not a really bad notch, but should I watch for infection?