When I was in fifth grade, the sixth grade "bullies" started a lunch strike. They intimidated most kids into going along.
On day 3, the principal came down to the cafeteria and screamed hysterically for 5 minutes. I didn't understand a thing he said, but I knew a nervous breakdown when I saw one.
I encourage these kids to do the same.
It's one of my few fond memories of school.
Bravo .. well played !