You have been warped to a pirate ship.
If you have come from the Goobadoo Desert you are still thirsty.
If you came from the Cemetery you look like crap, you're thirsty, you're hungry, and your almost dead.
You don't look like anyone else on board so you need a diguise. You see a pirate walking towards you and you realize he may be the only way you can get a diguise.
You can kill him for his clothes or find another means of getting a pirate outfit.