I have said to Moo a few times that he's being very naughty, but I don't feel good about it. So I've been saying that what he's doing is not making Mummy very happy. Then I follow it up with what I would like to see ITMS. So if he's throwing his blocks around I'll say "Moo it makes Mummy sad when you throw your toys, I'm worried you're going to hit the cats. How about you help Mummy pack them up so we can do a puzzle instead?" He's only just turned 2 so this works at the moment.

I haven't had to deal with anyone else calling him something I'm not comfortable with and probably won't as we're not near any family. But if it did happen I would deal with him as I normally would, then explain to the person that that's what Moo responds to.