One of these days, I'm going to write down all the funny things DS, now 8, has said... but here's a recent one. We went hiking with my parents at a local nature preserve, and before we left, I needed to use the restroom. I spent a good two minutes trying to convince DS that he should come along to at least "check."
Well, in the car later, DS says, with all seriousness:
"Mom, you used the bathroom 2X, Grandma used it once, Grandpa not at all, and ME, I had to use it once," [a slight pause here as if for a drumroll], "against my WILL!"
My parents and I laughed until we cried.