You choose door number 4.

You find yourself staring at an alien toilet. Whoever was in there last should have sprayed. The aroma knocks you unconscious. You collapse and accidentally hit the flush button before falling in the toilet. You’re sucked in then flushed out at lightning speed into the vacuum of space (aliens have some wild plumbing advances). You never wake up. Probably good, because how would you explain that to your friends?

Your story is over.