What is the nicest thing you've ever done for someone without their knowledge?

[newsclippings]

I feel too selfish to call it nice, even with sacrifice. Well, I saved a girl from possible death once, and lost my job over it because apparently there's a policy against time wasted on trivial matters like that.

Jesus, I just read a story about a nurse who wouldn't perform CPR on an old lady in the nursing home because she wasn't allowed to by the home (for fear that they'd get sued).