We might look at the older waiter as the stable center point of this story. The younger waiter is bouncing around, full of energy and impatience, while the old man waits quietly to pass out of this...

The younger waiter is just your typical young guy. Unlike the older waiter and the old man, he thinks that life is full of value. Also unlike them, he has a wife waiting at home, and he can't wait...

The old man is a regular in the café, and though he sometimes forgets to pay, he's generally a good customer. We mostly learn about the old man from the conversation of the two waiters; we're...