My 18 month old son is generally v happy and sociable but has just started a v disturbing habit of biting other children. I took him to a toddler group this morning and he had a really bad incident where he really sank his teeth into another boy's arm, when the other boy wouldn't let him into the wendy house. I was horrified but the situation wasn't made better by the other parents exclaiming 'he's bitten him!' in real shock as if they'd never seen this situation arise before, and the boy's grandmother made a real fuss, insisted on showing me the bite mark (it was bad) and took my name + phone no. in case his mum wanted to contact me. I handled the situation beautifully by bursting into tears (I am 7 months pregnant so that's my excuse). When this has happened before I have removed my son from the other child, said 'no biting' very firmly, and sat him on my lap as a time out, but the message doesn't seem to be getting through. In fact it seems to be getting worse. I really don't want to stop taking him to groups because I don't think that will help him to learn how to behave but I'm finding it really stressful now. Also, my new baby is due in Feb and I'm really worried about this this will affect his Hannibal Lecter-like tendencies, Any advice would be very gratefully received!