My parents always thought it was annoying and disrespectful so that's how I was raised. I never rough house, like smacking them but sometimes I tickle them but not often. My neighbor does it constaltly with her 5 year old son and she smacks him throws him down on the trampoline almost breaking his neck. She gets the boy very loud. When the boy gets angry at her he will hit or kick his mom and I wander if this is why because she play fights him so much. Last week my son went to her house and he came home with a red face and she had been rough housing him. My son enjoyed it and asked my why I didn't play hit him like that. I have 3 kids that are all young and fight enough, there is rarely a peaceful moment in my house and I don't want to add to that by teaching them to hit. I am a single mom also so it is harder to disipline and I want my children to behave.