So my brain was doing its thing, which is being odd and random. In this instance, I was idly wondering who would win in a free-for-all brawl: zombies, ninjas, or pirates. I came to the conclusion that zombies would win, unless the zombies could retain aspects of their former personalities, in which case undead ninja-pirates would win.
Which led me to thinking, I always hear about ninja-pirates, and not pirate-ninjas; why is that? And after thinking about it, I had an answer: pirate-ninjas fail at life.
Think about it. The first word modifies the second, so a ninja-pirate is this secretive, subversive, weapons-wielding, martial-arts knowing pirate, who plunders and conquers using subterfuge. On the other hand, a pirate-ninja is a loud, drunken, one-eyed, peg-legged ninja...and that's not ninja like at all. No blending in with surroundings, loudness gives away your position, and the parrot's bound to be a hindrance as well.
I envision in my head, a "battle" between ninja-pirates and pirate-ninjas...except it's more of a competition. I see them going about their daily lives/professions, periodically getting into skirmishes with each other, but mostly just doing their own thing, independent of the other. And I see the ninja-pirates pwning the shit out of regular pirates...and pirate-ninjas failing as ninjas, while the regular ninjas either look on in bemusement (or horror [or disgust]), or start actively killing them because their ruining the image and pride of being a ninja. So, in a rather
(social) Darwinian manner, the ninja-pirates prevail, while the pirate-ninjas are either wiped out by the other ninjas, or pick other professions (perhaps attempting to become ninja-pirates?).
And that's why you only hear about the ninja-pirates.