DW and the kids were at Great America two days ago. They were sitting in the theater, and a guy walks up and asks if they want to be grand marshals of the parade. Cool.
So DW and the kids, and the in-laws get in the car. A guy tells them "wave." Why he felt the need I'm not sure. That and smiling are the universally accepted jobs of people in a parade. MIL must have been self-conscious. The first half of the parade she was randomly announcing to people that "they told us to wave."
Afterward, the kids got to meet and greet privately with the characters. Marvin the Martian, Bugs, and Babs bunny - Bugs' woman. On the way home, BigBrother tells DW "I want to be the girl bunny."