Cass - Sorry, meant to reply to you ages ago but it slipped my mind! I don't know what you can do really, if he's not doing it at home then you can't do a lot. Lacie has been going through stages of hitting and pulling the animals tails, and everything I've read says to just make eye contact and say firmly 'no, we don't do that, I understand you are tired/frustrated/whatever but it is not okay to hit/bite/whatever'. It worked well on the hitting but hasn't made any difference with the poor animals, I think our cat is going to have a permanently bent tail if she doesn't stop soon.

They do seem to pick up a lot at childcare. Did they give you any suggestions on how to handle it? I know at our childcare they have a range of leaflets on biting etc and how to manage those behaviours. They deal with it all day every day, I'm sure they would have some good tips for you!