get in a fist fight

I’m an avid martial artist, and I’ve always had an affinity for fighting. Sparring is fun and all, but someday I’d really like to get into a real fight, just as a test of my skills. I wouldn’t really care if I won or lost (unless lives were at stake or something like that); I think it would be educational either way. I don’t want to just go out and pick a fight with someone, though, as that would be against my principles. I’ll let a fight come to me instead.