Well, hell, then just say ninja. A different word isn't going to change that you're claiming to be something out of bad kung fu movies.

Kid, I've seen brothers who had fights like that. They worked it out with lead pipes.

[Go ahead, give him a better name for it.]

[Ah hell, how does he explain this?]

It's a religious thing, if you believe in that kind of crap. Don't think about it too much. It's just old habit.