Got an Answer?
It's soooooo common. (I work in childcare). It's a stage. They grow out of it but it's annoying for everyone while they're in it. Just have keep repeating yourself about not biting and why we don't bite etc. If you're with other people's kids you might have to hover a bit and stop it happening before it does, when you can.
When my daughter was very young she took to biting her brother. Finally I decided we had to do something. Next time it happened I bit her back. She never did it again.