i've got two boys living together have been since we got them,they have been ok normal behaviour bit of rumbling bit of mounting but no fighting,now today i get home get piggys in run for cage cleaning day and little hugo (the one who normal gets mounted and rumbled at )has a bit of hair missing on his nose it wasn't like that this morning,now did ralphy bite him no skin is broken just skin showing through,i'm worried that the rumbling and that has gone nasty.i'm keeping my eyes firmly on them,when i move one they both week and week till together again what too do?boys are funny aren't they