Some people think the world owes them everything and don't realize it till the favors stop. And it's no reason to stop. But, sometimes if it's someone you see often and they don't show any appreciation, I think it's fair to occasionally hold back on the favors till they notice and learn to appreciate them more. It's kinda like the thing "you don't miss things till they're gone". I'm tired and can't think of a specific quote. But, you know what I mean. And when they begin to appreciate things again, they may in turn, learn to be there for others in times of need. Even the smallest gesture can go the longest way.