I have often thought about bringing a toothbrush with me to brush my teeth after dinner at a restaurant, but I never went through with it. Instead, I settle for a good hard rinse at the restroom sink. Then I run the water to clean the sink.
Doug, just think of the entertainment value of seeing that woman brushing her teeth, and there was no extra charge, I hope. It could have been worse:
Remember when Pee Wee Herman was caught "doing his thing" in a movie theater?
And Fred Willard was caught with his pants down in a movie theater.