One small one on my left index finger from trying to gut a fish when I was nine years old. I could build that up and say "it was a fierce beast, extracted from the blackest depths of a turbulent sea, believed to not even be real by most and feared by the few that believed otherwise! Why, this was like, the Jack Bauer of sea creatures!"
But the truth is it was a small rainbow trout, and I was nine years old and clumsy.