If someone makes a mistake that could lead to a bad consequence for someone is it acceptable that they don't accept responsibility, blame someone else, hide their face in their hands so that you can't see them, refuse to make eye contact, hit themselves in the face repeatedly with a placemat, stamp their feet on the floor over and over and finally, put their hand onto a cooker ring rather than apologising? There are no additional needs present and this behaviour is normal for them but at what age would you expect them to grow out of it?