Has A Rock Solid Murder Plan

(I work as a swim teacher at my local swimming pool. My first lesson on a Saturday morning is two brothers, about three and four years old.)

Me: “Now, you want to move your arms like this, to pull the water!” *demonstrates*

Four-Year Old: *excitedly* “If I killed my brother with a rock in a river, the rock would be too heavy and drag me under, too!”

Me: “Okay… let’s work on some kicks.”

(Apart from this incident and occasionally hugging each other like koala bears, those two were great students!)