Lent a guy $15 a few years ago to help him get things to build a cake for his daughter's birthday party, because he called me all desperate and begging for it.

I figured it was just $15, ok fine. So I lent it to him and he promised to pay me back right away.

A couple weeks later I asked if he had it yet since it was just a small amount that he should have been able to come up with quickly. I didn't NEED it, but I wanted it since he promised he'd have it by then.

He got defensive and said I'm worse than a damn bill collector and that if I wanted the money bad enough I should come over and fight him for it otherwise he was never going to pay me back.

Seriously? Pissed me the fuck off. He threw away our friendship and threatened to fight me JUST because of $15?

Yeah I'll NEVER lend another person money again. Never. Glad I learned that from such an insignificant amount.