I was good friends with all of the security guards, so they'd let me leave anytime I wanted to while everyone else needed a special pass. Sometimes I'd vouch for people and let them tag along, and there were a few that tried to leave on their own after that but got shot down.
Then I had a few run-ins with my dean when I was doing dumb shit like smoking cigarettes on school grounds. I convinced him not to write me a ticket because it was just a passing phase of teenage rebellion and I can only live this time of my life once. He left me alone for the rest of my high school career. Whenever I got sent to the deans office by a teacher, we'd just sit there a bullshit about random stuff, then I'd go back to class.