Spaceman one: I say, look out the window!
Spaceman two: Which window?
1: The starboard window!
2: Dear me, it's some kind of terrible space creature!
1: I daresay it is! Let us do Science upon it!
2: Jolly good!

So the two spacemen took the creature on board, but the creature was altogether too wiggly to contain!

1: This creature is altogether too wiggly to contain! In its wiggly rampage, it just killed me.
2: It just killed me too.

The creature, which they had called "Merry Death" because it was so merry and also because it was so deadly, ate the bodies of the two spacemen, because not eating them would have been a tremendous waste of perfectly good dead spacemen. Merry Death took their spaceship back to Earth where it tried, almost successfully, to blend in with the local population by taking the form of a supposedly human girl. Since it was obvious to everyone around her that she was not of this world, she instead made friends with a lobster named Robster, and they lived happily ever after. The end.