ie. when he twists both hands in my hair & yanks in order to get purchase for a really good head butt!
He's not angry or upset or anything, he just thinks it's bloody hilarious - if I say 'no' in a nice 'oooh we don't do things like that' way, he falls about laughing. If I say it sharply he looks bewildered.
When do kids start getting the idea of 'no'? My instincts are to start as I mean to go on, but am I just confusing him?