http://sepiasaturday.blogspot.ca/, is based on a photo posted by Alan in which the photographer omitted some poor fellow's head. As a variation on the theme of photographer as decapitator, or omitter of other body parts, I found two photos in my collection that suggest the theme of amateur photographers as imperfect framers and shot composers.
This first photo is a family portrait:
This second photo is a group photo of an event of some kind:
I've included this picture in the theme of amateur frame-botching because of the sign or banner in the top left corner. Just enough to tantalize, far too little to let us know what kind of an event it was. Pencilled on the bottom of the mounting board (which I cropped out of this scan) is "Burt Grove." It could be anywhere, but I think it might be Burt's Grove, which was in Auburn, New York, a Google search of which turns up several references to picnics and other similar events there in the late nineteenth century/early twentieth century.
Now that we've dispensed with the theme, take a look at the people in this photo (click on it for a closer view). First we have the group of five girls under the tree on the right, who seem to be the only ones aware of the photographer. Next, look at the young lady in the centre, viewed in profile. She seems to be trying to talk to the young fellow sitting under the tree, who appears to be sulking. Oblivious, everyone else is helping themselves to the spread on the tables, which is supposed to be the main idea, in the first place! This one, folks, is an example of a picture that could easily support a thousand words and a hundred different stories.