Did you ever see Cheech and Chong's Up in Smoke? That's what happens if you really smoke weed and make a movie. You get two guys and no plot and it's basically like, 'Yeah! Let's drive a van made of weed!' And that's pretty much the movie. ↗
If you want to know why all writers are a little crazy read 'The Midnight Disease' by Alice W. Flaherty. She talks about the drive to write, writer's block, and the creative brain. I know what's wrong with me! ↗
I'd probably want to teach at university, because children would drive me insane. I suspect it would be English literature, Shakespeare and so forth. I've always been deeply, deeply in love with that kind of thing. ↗