When angry feelings do boil over and you have to protect a sibling from physical attack, it’s important to take action without reinforcing negative feelings. While grabbing up the aggressor, resist the temptation to say, “There you go again. You’re too rough! Now you made the baby cry. That’s mean!” Instead, snatch him away without insulting his character: “I can see you’re angry! I can’t let anyone get hurt. We need to separate!”