I hunt at a vineyard where the owner's position is kill 'em all. He has a valid concern given the thousands of $$ of lost inventory due to the deer, electric fencing and other measures only having limited effect. That said, I have had quite a few fawns in my sights during their dopey "too dumb to run" phase, and have been unable to pull the trigger.
A piebald fawn? What would you do with it once you shot it? Keep the hide?