Ds is just over one year old and is a real character. He is a happy baby, amuses himself and he and his 4 yr old sister get on really well.
However, the last week or so, ds has been pulling her hair, scratching her, pulling at her clothes - i know its not in a malicous way but he does know he shouldnt be doing it as he laughs when he does it.
How do i deal with it so that dd knows im not allowing her brother to behave like that but at the same time make sure that ds is suitably "punished" - not the right word but im sure ykwim!