My toddler is just horrible. He learnt shut up from it being said to the dog when he was barking and wouldn't stop. It was a mistake and I know it was my fault. Anyway toddler heard and it's been his favourite words ever since it's just constant. Every tantrum now of which there are many he just berates me shut up mummy shut up shut up shut up. No matter what I say. He ends up screaming it at the top of his voice he's done it in public it's so embarrassing and I just feel like the worst mum ever. He will not stop saying it. He talks me to like crap shut up mummy go away mummy I don't want you mummy. He scratches and hits. You'd think we don't parent him but all we do is try and teach him to be kind and gentle he's just not. He's a brat and he's nasty. Don't know what I've done wrong.