The kids just fight and argue the majority of the time and they have started being mean to the little one now. They are 7, 4 and almost 3. I know all siblings fight but the way they speak to each other at times is awful. They won't share, they tell each other to get out of my room, and it is really waring. They tell tales too. They hit each other too. I have tried to explain that if they don't want to be hit/spoken to awfully then not to do it to someone else, but the message isn't getting through.
Help!