My one year old has started biting myself and OH when we're playing with him. He's a very cuddly toddler and often climbes onto our laps and hugs us and it's in the middle of a hug (which he has initiated) that he finds the nearest bit of skin to bite. He has a lot of teeth for his age and is currently getting more through - I don't know if this is related or not. When he bites we say no firmly and put him on the floor. I'm not sure he understands as he just stares at us and finds the nearest toy to play with. Any advice?