The other day, I was at a friend's house and they had his boxer inside the house and his four year old nephew was jumping on the dog's back and playing a too rough with it. I know some dogs don't mind it and enjoy the physical challenges but this dog was seriously getting annoyed. He was litteraly running away from the boy,a nd the the boy would chse him! I tried to tell him that he could bite if driven to the defensive but they all just laughed said he was a good dog and the boy was just playing around but I couldn't help feeling sorry for the dog and angry at them for letting the boy play like that with the dog. I feel like even if the dog is too kind to react, he shouldn't be tested like that. Am I overreacting? Any thoughts?