Journey by Stephen Clark  
    to Ridgetown

You press the white button.
    At first it seems like nothing has happened, but then reftak says, "You idiot! That's the button that raises the white flag! That means we surrender!"
    You say, "Ooops."
    A few minutes later, the Fnorlian ship links up with yours and they come on board. The Fnorlian captain says, "My name is Captain Kolinz. You are all my prisoners. Come peacefully and you won't be hurt."
    But just then you pull off the mask and say, "Wait a minute! I'm not a glorrzappian! I'm a human! And I was trying to sabotage this mission so I am not your enemy."
    So Captain Kolinz puts all the glorzappian aliens in the ship's brig and lets you ride on the bridge. He says to you, "The Fnorlians are a warlike race of people. We live for combat. The war between Glorrzappians and Fnorlians has been raging for centuries. Nowadays, no one can even remember what started it. Back in the old days, we used to have several enemy races which we were at war with -- but now we have wiped out all but one. So we're always looking for new civilisations to declare war on. Tell me, where are you from?"
Say "I'm from mars."
Say "I'm from earth."