As the title states, would you smack someone else's kid and here is why I ask..... Over the weekend, my wife, myself, and out 2 kids where at a birthday party for a 2 year old boy. Apparently the boy is going through a biting phase and decided to bite my kids. My son and him are playing with some toys and he the kid leans over and bites my son on the arm. My son, looks and him like wtf is your deal and walked away. The parents yelled at the kid and told him not to do it. A little while later, he goes up to my son and bites him on his back, which left teeth marks. Again, same thing happens, my boys walks away and the parents tell him not to do it, along with my wife and myself. We are getting ready to leave the party and the boy comes up and bites my daughter in the back, she screams and starts crying and the parents yell at the boy and take him out of the room to "cool off" and his mother apologized to us. Each time, that I saw that he did it I wanted to go over and give him a crack across the face and tell him not to do it again. It took all I had to hold back and not do it. So I ask, in a situation like that would you crack that other kid across the face and tell him you don't do that, then send him on his way?