I have heard people say they can cut each other up badly or even kill. I haven't gone looking for any fighting teeth to trim.I'm sure they'll be OK but that doesn't mean they won't fuss at each other. Teddy and Laddie have been together for years. But they still get pissy even though they are the only friends they have. Teddy will lay his neck over Laddie's neck, Laddie will scream and spit at Teddy. Happens almost every evening if I don't get their maintenance pellets of to their bins fast enough to suit them. I don't know how many times I've told them to knock it off and shut the F up.