Bill and Doug went into a diner that looked as though it had seen better days.
As they slid in to a booth, Bill wiped some crumbs from the seat. Then he took a napkin and wiped some moisture from the table. The waitress came over and asked if they wanted some menus.
"No thanks," said Doug. "I'll just have a cup of black coffee."
"I'll have black coffee too," Bill said. "And please make sure the cup is clean."