Nitpick: 'trick or treat' doesn't refer to the ambiguity of the offering. It's actually a threat to play a trick on households that don't supply treats. I.e. gi

Nitpick: 'trick or treat' doesn't refer to the ambiguity of the offering. It's actually a threat to play a trick on households that don't supply treats. I.e. give me a treat or I'll play a prank on you. It's not really serious, though.