I haven't been here in a while...for those who remember about Taffy who fell - she is doing great. It's as if nothing happened!

ANYWAY, Toutolina, male, is always playing silly games with the rock - fanning, I suppose. Well, I was cleaning his tank and when I lifted him up, noticed a bruise on his arm, as if he were bitten. He lives by himself...i just noticed that he is biting himself, obviously to the point that he has hurt himself; but he keeps going at it, especially when he is playing. Should I be concerned?
