Ruby (5) to Harper (2) (while eating raisins): Harper, if you eat this, it will travel down your body, you will poop it out, it will travel to the sewer, rats will eat it, they will poop it out, then it will live on for eternity getting eaten and pooped out. It is like it will be forever on a water slide or at a water park.
Me: why water slide and water park?
Ruby: Because your body is like a water slide for food, then when it comes out, it lands in a water park where it waits for the next water slide.
Harper: I don't want to talk about it. (throws raisin on floor).