Thinking back to all the times when I was in a classroom or a house full of kids who were all running around and screaming their little heads off I suddenly remembered the one thing that turned yelling into quiet voices. I whispered.
Now you might think that whispering in a room full of screaming kids wouldn’t have much impact, but I’ve found that screaming is the thing that makes the least impact. The kids just thought I was playing along with their game and continued to scream unless I really lost it, which I later felt bad about.