Naughty Mummy

The other day I decided to slap my son’s hand for being rude and he was like “Naughty mummy, rude mummy hiss teeth” now what do you do in a situation like that? Is he being rude or just don’t understand what he is doing?

My mum explained that maybe at school if a child slaps another child that’s what they tell them naughty and rude, so when I did that he was just saying what he has learned. Children, what to do.