The parent who angrily says to a child, "i worked overtime to buy you that piano and now you want to stop taking piano lessons?" might be playing the game of

The answer is "you owe me".

The individual expressing "you owe me" is suggesting that whatever support they have quite recently done was difficult and/or lovely, so it ought to be recalled whenever they ask for assistance from the other. it is smarter to leave little claims and not remind a man by saying as much. This should just be done on the off chance that somebody has obtained a sum and guaranteed to return inside stipulated period.