Poor DS1, he's been bitten really hard on the back. He didn't want to tell me what had happened, he was just screaming but I saw what looked like a mouth shaped bit of slobber on the back of his t-shirt and there were teeth marks.
I gave him a cuddle and said I was really sorry DS2 had bitten him, and that it really hurts...but I don't know if there's anything more I can do. It seems ridiculous to tell DS1 off (he was literally one two days ago, he'll have no idea) and short of saying "no" firmly when he does it I don't know what to do. He often bites me and it bloody hurts. DS1 never did this. He also pulls hair and slaps; again, I guess we have to wait til he grows out of it but it's really trying!
Is there anything I'm not doing that I can do to make this better?