There’s A Shark In The Pool

When I was a kid, I used to imagine that there was a shark in the pool. Well, I should qualify that statement: when I was the first person in the pool, I used to look into the pool and objectively know it was empty. I also would objectively know that a body of water that size could hide jellyfish, sharks, or the occasional moray eel. Or stingray. Or whatever else lives in the ocean and tries to eat at you...