Grandpa? Is that you?

How do you make a charming photo of a sweet little boy and his dog creepy and unnerving? Insert a random image of a stern old man in black. Insert it upside-down.
Was this meant to be cut apart? To be mailed as-is to some unsuspecting relative? (It is printed on the front of a postcard …) Or was it, like the photos taken with toy Holga cameras, some kind of artistic accident? At least it was a happy accident, to my eyes — but then I frequently like things for the wrong reasons, as this blog is no doubt ample evidence.