I was in SSC doing homework and there was a group of professors in a room nearby eating a catered lunch. Instead of throwing away leftover food one of the professors came out and invited all the students studying there to come in and help themselves. It was a very nice gesture, plus who doesn't like free food!
My car has been having some issues lately and yesterday my friend offered to re-install the problematic piece for me for free.
I sat down on the floor to eat my lunch because their was not any tables that were unoccupied. A girl sitting at a table noticed me and offered her spot to me so I didn't have to sit on the floor to eat!