Damn, I was away for a few days, so hope this isn't...erm...old news.
Most of my trajectory has been trying to find things I'm not bored with, which is no small part of why it's taken me so long to settle back down to academia -- it took me longer than some to discern the red thread that connects all my other seemingly disparate interests, and I wasn't about to go back in an area that I would get bored with after two years. (On a not unrelated note, I discovered the origin of 'red thread' as I was reading Goethe the other day -- God, I love history of political thought. High-falutin' philosophy aside, it's really just about people and how they act, which turns out to be the red thread in question. Fortunately, it is also impossible to get bored with that subject, since, no matter how hard one tries, one will never actually understand people.) I did tech support. I was homeless. I worked as an armed security guard at an intelligence agency. I was a technical administrator of a distance learning program. I got certified as an Underwater Criminal Investigator at some point. That was a highlight.
And for those who made cracks about the grey hair...I've actually been going grey since I was 19, a genetic thing. So, yes, I probably have more than anyone else in the classroom, including most of the profs! But any sort of existential crisis about getting old doesn't tend to happen when it hits you that young, you just accept it as a thing and that's that. On the other hand, it can be used to hilariously uncomfortable effect on the 22 year-olds now and then.