My friend's 4-year-old got sent home from nursery school the other day; apparently, he was in a group of 3 boys who pulled down a little girl's pants. While Johnny was absolved of actually pulling down the pants, he was gulity of cheering them on, yelling "smack the booty! smack the booty!"*(Visualize clenched fist pumping in the air).
He got 3 days.
*Public Service Announcement: Do NOT Google "booty" while at work!