As a teacher I can confirm

One of my best mates in senior high was this guy who always wore a leather bike jacket, jeans and cowboy boots, curly long black hair, sporting a really heavy pornstashe when he was 16, really bad student, and the official school's party animal #1 as well as tough guy #1, always first to get into any trouble whatsoever, we used to drink beer and smoke hash oin the parking ground even before school started and didn't stop there. We spent most of our days lying on mattresses in someone's parent's basement and waited on being sober enough again to get some more drinks or hash, like the classic potheads in a Richard Linklater movie. When we graduated, I started working a super-straight office job in the city and he kept on partying so we lost contact pretty fast. Some 15 years later I cam,e back to the old place and met him at a mall, looking exactly the same. He told me he stopped boozing years ago but was still toking, and that he had just started growing his own weed, cause ....

… he couldn't score with the usual suspect´s in the area any more. I asked him why and he told me he had just started as principal in the very elementary school we both went on as kids. I was flabbergasted and could hardly believe it. Then he asked if I had heard about this other guy we hang with at school, a guy who was a full-on alcoholic as a teenager, always the first to pass out at parties after executing some absurd jack-ass stunt, mostly destroying something in a spectacular fashion within the first hour, then lying in a drunken stupor, wailing like a Charles Dickens character for the rest of the time. Yeah, so that guy just became principal of the middle school right next door of the elementary school. The high school hottie we all three lost our innocence to however had become a minister in a very strict evangelical church in Berlin. You can't judge a book by the first chapters.