The moon was my shot but the incidentals just wanted to be there! I don't expect Trick or treat to arrive at our door but I had this idea of dressing up and knocking at the door. Then I thought, John being John, would say 'trick'. And then when I came up with an appropriate answer, it might be next year!
You should have done it & taken a photo of the surprise! Knowing men though he would be expecting you to answer the door but you were outside! Very good Halloween photo.