"Wait! I know!" Karyn blurted as she began to slowly pull off onto the shoulder. "We were hurrying because ... ah ... you have to go to the bathroom."
"I don't have to go to the bathroom." Jon said snarkily.
"I wish that Jon's bladder would reduce in size until he badly needs to go to the bathroom."
"What!" Jon screeched and clamped his (now her) legs together and clinched his butt as tightly as possible against a sudden powerful need to pee.
Coming to a complete stop, Karyn alternately watched her rear view mirror for the officers approach, and glanced at the now realistically squirming Jon. She was only going a little over the speed limit. Surely an urgent need to pee would be enough of a reason wouldn't it? Looking at the now hotified Jon squirming in discomfort, she wondered if a more dramatic image was called for, something that was more acceptable?
Karyn saw the police car's door open and the officer step out ...