I left school after 3 & 1/2 years, quite close to graduation. I realized I had no clue what I wanted to do with my life and I didn't want to end up stuck in a cubicle somewhere doing something random.
So I quit school, traveled all over the place, did all kinds of mcjobs and tried just about everything I heard about. I found out a lot about sex toys (mainly dildos) and had sex with several women and one guy (my best friend). And I paid a big chunk of my salary to my student loan payment every month.
Finally, after over 10 years away, I went back and finished school. Only took one semester; it was easy, and a lot of fun. I did spend some years after that working horrible jobs, but now I work for myself, make a decent living and still have enough time for myself to stay sane. I paid off my student loans about a year after getting my degree.
I've always kind of wanted to go back to grad school to get a masters or phd, but I think I'd rather just self-educate as a hobby. Maybe someday I'll live in a college town again. I could corrupt a lot of bright young minds.