Bus your own tables

“BUS YOUR OWN TABLES” says the sign on the front door of the restaurant.
And the cashier at the end of the buffet line reminds every customer to bring their trays to the window for the dishwasher to wash.
But half of the people leave their dirty dishes on the table when they get up to leave.
So, the restaurant owner hired a guy to clear tables.
And he raised prices to pay for the guy.
Some customers complained about the price increase.
And others stopped showing up.
The owner gave up, closed his restaurant, and bought a Subway franchise.