There’s an interesting story which goes like this:

A man entered a cafe in a quaint old Italian town and said to the waiter, “Two cups of coffee please, one of them on the wall”. The waiter brought him a cup of coffee. After the man finished sipping the beverage, he got up, paid for two cups and left. The waiter immediately went near the wall and fixed on it a small paper note reading: ‘One cup of coffee’.

After some time, two men entered the cafe and asked for three cups of coffee, repeating to the waiter, “one of them on the wall”. Just like in the earlier case the waiter brought them their two cups, the men finished the coffee, paid for three cups and left. The waiter then went near the wall and attached a small paper note reading ‘One cup of coffee’ to it.

This went on for many days.

One fine morning a poor man entered the cafe and said to the waiter, “One cup of coffee from the wall, please”. As usual, the waiter brought him a cup of the hot beverage, the man sipped through it, stood up and left without paying for the coffee. The waiter then went near the wall and pulled one paper note from it.

How’s that for social service in the face of business ethics?