Beware the pond sharks!

The following conversation took place this evening, while Reilly and I were playing on my bed

Reilly: This is the corn (as he puts a pillow over my head; I am lying face down and he is sitting on my back)
Me: Why are you putting corn on me?
Reilly: To keep you warm. So the sharks don't bite you.
Me: Sharks?
Reilly: The sharks in the pond.

Ahhhh, of course, one should always wear corn to stay warm and fend off the pond sharks. Got it.