"I never thought about that car thing. I'll have to try that."

I always give a few bucks and say can you keep me up front. If I don't do that and there is a crowd when I leave I ask how long a wait. If they say anything more than five-ten minutes I give them a five with my stub and say I have an appointment someplace see what you can do for me. I am always out in a few after that. It's never failed. Barry