What is a picture?

What is a picture? – “Nighthawks”

 

The diner was nearly empty now, and the assistant continued to wash cups and mop the counter. A couple on the far side stayed, taking their time over their final cups of coffee. On his own, he waited for them to leave. Two hundred dollars were neatly folded inside an envelope in his breast pocket, and his hip pocket remained empty. The barman looked up at him apologetically. They could be here for a while.