I just... how did that culture coexist with the buttoned-down ex-defense and law enforcement types?

"I’m not sure if they still do this, but at the time when you joined they sent you a copy of Impro"

https://en.m.wikipedia.org/wiki/Impro:_Improvisation_and_the...

It's quite clever.

Law enforcement and street gangs actually have a lot in common.