I'm trying to get advice for a friend who is struggling with her ds behaviour towards her dd. Ds will be 3 this spring, dd was born slightly prem and so is very small for her age (four/five months). He's genrally a good boy if a bit like the energiser bunny, however he has been violent with the baby, one minute he'll be being affectionate and then he will turn & slap her etc, with no warning as to this change in mood. The other day he grabbed her leg and pulled her before my friend could stop him. My friend is a very caring, reasonable mum who does not loose her temper easily at all(completely the opposite to my parenting style!!) however in this instance she grabbed him back and asked how he would like it, he just laughed and said do it again. She has got to the point where she cannot leave them alone under any circumstances and I thinks it's weighing pretty heavily on her. I'm not sure how she would feel about me asking for advice on a public forum so I have been pretty vague with these details, any advice I could pass on would be appreciated though!