The Pending Coffee

We were in a small coffee shop. Two customers arrive. “5 coffees. 2 for us, 3 pending”.
“What’s a pending coffee?” I ask to waiter. Waiter told me “Wait and see”.
More customers. Two girls get their coffees, they pay normally.
After a while, 3 lawyers ask for 7 coffees, they only drink 3 but paid for 7.
While we were talking, a poor man enters the shop. With soft voice he asks “Do you have any pending coffee?”
This type of charity was born in Nepali and Italy. People pay in anticipation for the coffees and even meals for other who can not.