Long drive

We took our son on a trip that is usually 3.5 hours long, but can be much longer if you have a kid who is no longer in any sort of diaper/pull up.
Our son proclaimed he needed to "pee pee in BIG potty!" so we pulled over and my husband takes him to a tree and explains how little boys can pee pee outside on trees and it's OK to do if you have to go and you don't see a big potty. Our son goes and we are on our way. We get to the "hole-hell" (hotel ) and our son runs to the lobby and up to a fake tree where, yes you guessed it, he whips down his pants and proceeds to pee on this fake tree all while saying very loudly "Daddy said pee pee on tree!"