I agree with Mom in Alberta - biting at this stage is developmentally appropriate behaviour because they lack the impulse control and language to resolve issues otherwise and well sometimes they are teething and 'bite just cause it feels good' ... however it is SOCIALLY UNACCEPTABLE regardless and our job is to role model and steach them impulse control, langauge and empathy to find better solutions to their 'need to bite'.

I would attach a teething toy to his clothes and redirect him to BITE THAT if he is angry or upset cause he NEEDS an outlet at that age since he does not have the language to resolve his frustrations yet.

I too would shadow and help GIVE him the langauge he needs to solve problems before we get to the need to bite.

When I cannot shadow him because I am busy with the other kids doing art or something, or peeing or what not I would place him in a pack -n- play or 'contained' activity at the highchair so that he is not a risk to the others as a preventative measure until he is over the stage and able to 'resolve conflict' successfully during other times of the day.

I would be talking to the parents about at HOME to make sure we are all approaching this the SAME because consistency is key.