My soon to be stepson is 8yrs old. recently he has entered a new phase of being too physical and getting into peoples personal space alot! he "bopped" me in the head playing around but it was too hard so I bopped him back saying "hey thats TOO hard, dont do it again" then he bopps even harder while laughing. So i grabbed his arm and said we are both going to agree to stop playing around with this whole bopping thing cause its gone too far. he replies with a "no" then tries to jerk out of my grasp. So I would not let go and then said Im not letting go until you agree that this will not happen again! I reminded him that I dont let Bailey (my daughter) talk or treat me with this kind of disrespect and im not going to let you do it either. Then I let go and he took off running for his dad! For the most part my fiance backs me up when it comes to me and his kids and I back him up when he deals with my child! Is there another way for me, myself, to handle this kind of behavior from him! Normally he doesnt act this way, thats why I think its a phase, also bc my daughter went throuh something similar to this when she was his age, with the whole getting into others personal space but she never hit anyone even playing cause she new better. She knew I would not let that go without some sort of repercussion! I need advise please!