Carlo seems to me to be a mild- mannered kid to start with and nasty is not his style. Add on to that the intimidation factor of being a young defenseman in a league that still has some rough characters and I think he gets a pass while he's finding his way. He did start to get a little more aggressive last season, not because he never cared (I don't buy that for a second) but because he is starting to feel comfortable in the league and where he fits in it.