Schulte asks: I am trying to figure out how to get my 3-year-old son to stop biting at preschool and fighting with the other kids for their toys. His father and I have been taking his toys away and grounding him to his room and giving him an early bed time when we get a report from his teacher that day saying he bites. We also talk to him telling him that is bad. He has a 6-month-old baby brother who has been teething so a lot of attention has been on his little brother. We pay attention to our older son and play with him.