"This is a strange picture."
"Indeed it is," Harold said. "Can you imagine a circumstance where one's shadow is cast twice?"
"Yes, in the wonderful world of Adobe Photoshop where any kind of image manipulation is possible."
"But it's not altered in any way. I have the negative to prove it."
"Nevertheless it looks like a composite of some kind."
"It may look that way, but it isn't."
"You took the picture?"
"Two separate shadows indicate there must have been two light sources of equal intensity."
"Yes, that's generally true."
"But untrue here?"
"Sunlight, plus a strong spotlight?"
"Well, you've got me stumped on this one."
"I'll let you think about it for a while. Let's see what you come up with."
[Another rare authorial aside: Ideas? Anyone?]