"Welcome to the Jungle"
I don't know if I can think of a wilder, more untamed place then the hallways of the high school where I work at passing time. You know, in between classes. In fact, there is one hallway specifically where particularly large crowds of teens tend to gather on a regular basis. I call the groups "people clots". You know, instead of blood clots. Same idea really, but instead of blocking major arteries these guys block the flow of traffic. It's crazy during noon supervision, trying to navigate this gauntlet. It's a big, fat party in the hallway. (I say this somewhat fondly as I love the energy that's always present working at the highschool level. There is always something going on.)
Stop over and have a look!