An alien crash lands on earth, wanders into a small town, finds the only house with a novelist in it and knocks on the door.
The novelist answers and after the initial shock of seeing such a strange creature, the creature hands him a note. It reads: “In your language, I have come to invade and conquer.”
The novelist scribbles something on a piece of notebook paper, tears it out, and hands it to the alien: “Why?”
The alien types in something on his keyboard and out prints his response: “Because you are weak and we are strong and this world has many things to offer us.”
“Does that include the asteroid on a collision course toward earth?” the novelist asks.
The alien thinks about that. After a moment, the alien turns and leaves.
The novelist turns back to his writing, knowing nobody would believe him if he put this incident in his novel: an alien with good grammar. Unbelievable. After all, fiction had to be believable.