How to Spot a Psychopath

I found this picture on Flickr while looking for something quite different. I think it's fair to say that almost anything is quite different from this picture.

I invite you to look at the picture for some time. Feel free to click through to the bigger version on Flickr. Turn it round and round in your head a bit.

Here's another angle:

In a moment, I will tell you how this strange tableau came to be. But you may prefer to read no further. Not because the explanation is as unsettling as the explanation for such a scene honestly ought to be, but merely because the explanation, like an explanation for a magic trick, may leave your perception of the world poorer than it found it.

I'm reminded of the Penn and Teller trick where Penn says that Teller, who just magicked his way out of a box he'd been sealed in, is about to do it again, but this time so that the audience can see how the trick is done.

Penn then commands the audience to make a choice.

They can close their eyes, and thereby preserve the mystery and astonishment of the trick.

Or they can leave their eyes open, and watch a middle-aged man get out of a box.

If you'd prefer to preserve the magic, do not scroll down.

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Greetings, fellow spoilers of jokes.

So far as I could glean from the comments on the Flickr picture pages, the explanation is:

There is something interesting inside the giant pig. Presumably real pigs.

The children have their faces pressed to windows, which allow them to see in.

You are not allowed to look through a window unless you first put on a tail.

The guy in the foreground in the first picture is probably not actually about to start butcherin' young 'uns.

The end.