It is bad to waste food
Alice orders a few too many sandwiches for her team's meeting at the office.
Alice wants to do something with the leftover sandwiches.
Alice offers up the sandwiches to the rest of the office and puts them in the break room.
Alice throws the leftover sandwiches in the trash.
Alice's coworkers are grateful to Alice since they don't need to buy their own lunches now.
Alice's other coworkers see the wasted food and judge Alice, and they now have to go buy lunch for themselves.