Friends Son Bit Me

Ouch! That would be so sore.
A 4yr old should know better- many younger toddlers like around 18 months (from memory) go through a biting phase cos they dont know another way of expressing themselves- I remember Isla getting a really bad bite on her face from another kid.
Do you think he got a fright from the bear hug or did he get over excited by the games? He might have been as suprised that he bit you as you were. It might have just been a one off thing.
Whoever was going to dicipline the child, should have got down to their level and explained first what they had done wrong, and why its not acceptable.

O tends to get a bit over excited when playing rough and tumble and will often bite. When he does it though all playing stops straight away and he is told off very firmly, and always made to apologise, and in some cases sent to his room.

It does sound like quite "normal" behaviour especially for little boys, but it also sounds like it should have been dealt with more seriously. 

Hope that you are okay!

 

My 3 year old very rarely bites. Its once in a blue moon.

However, if he bit someone, especially hard enough to leave a mark he would know hes done wrong. He would get my mummy voice (which makes him cry lol). I'd be so mortified by it.