When gaining a Harem in an Aqueduct game, I get asked whether I want to move the vp from harem to aqueduct before or after taking the points from the aqueduct. Now, I believe this is only ever relevant for defiled shrine/aqueduct/crown games (isn't it the only way to have vps on a kingdom treasure?).
So, maybe don't ask unless there are points on the relevant pile?
And anyway, I can't think of any edge case where I wouldn't want to take the points. :)
Edge case:
Kingmaking in a 3 player game. You are player one an cannot win anymore but its close between two and three. You leave the points for player two's profit OR take them away (which is indirectly player three's profit).