My 3 year old is pushing the limits of my patience. Please tell me I am not alone. Ever since his baby sister was born he has been a little rough with her. Not so much when she was a tiny baby, but as soon as she could sit up (and be knocked over), I have not been able to leave them in a room together alone. He will tackle her, push her down, trip her, whack her with stuffed animals and I have had it. I would say a good 75% of his timeouts are because of this roughness with his sister. When he actually makes her cry I can tell he feels bad, but I can't seem to get across the seriousness of this behavior to him. Every single time he is rough with her it lands him in timeout. I am consistent to a fault, but I haven't noticed any change in the behavior. I have tried explaining to him calmly and now I'm at a loss of what to do. It is making me so frustrated and upset that I find myself yelling at him, which I am sure is the opposite of what I should do to convince him that loosing your temper and lashing out is not proper behavior. I have tried reinforcing good behavior but I need some advice. Have any of you dealt with older siblings being mean to their younger ones? Any tips or tricks or advice for this mom who is about to duct tape her 3yo's arms to his sides to keep him from using them inappropriately??