The Pending Coffee

We were in a small coffee shop when 2 customers arrive.
"5 coffees, 2 for us, and 3 pending"
They pay for the 5, but only get 2
"What's a pending coffee I ask?"
"Wait and see"

More customers come in, get their coffee, and pay normally.

After a while 3 lawyers come in, ask for 7 coffees, drink 3, but pay for 7.

Whilst we were talking a poor man enters the shop.
With a soft voice he asks..."Do you have any pending coffee?"

This type of charity was started in Napoli, Italy. People pay in anticipation for the coffee, and even meals that the less fortunate people cannot.