Walking the pig, from Goaks and Tears by M. Quad, 1875.

How well do you know your pig-headed ghouls of history?  This one, from Fun magazine, 1864, is King Wilhelm of Prussia.  (The answer is in black text on a black background.  Highlight it to view.)

From the Medical College of Virginia's X-Ray yearbook, 1921.  See How to Hoodoo Hack a Yearbook.

From History of Troop A Cavalry, Connecticut National Guard and Its Service in the Great War as Co. D, 102d Machine Gun Battalion, 1919.

"Help help!!  Please do not kill these or bacon will cost you one dollar a pound."  Photo by Leslie Jones, date uncertain.

Here's a pig as king of the corn, from c. 1890.

"A dream of the sweet bye and bye," from c. 1890.

"He lards the lean earth as he walks along."  A pig as Falstaff, c. 1890.

Interestingly, we sent this image to a games aficionado, but he wasn't convinced that the pig was truly spectating skittles players.  He felt that the pig's expression was inscrutable, and the so-called skittle players are out-of-frame.  Yet the caption tells us what we're seeing; "case closed" as far as we're concerned.  To paraphrase René Magritte, this is not a pig, anyway.  If we can't roll with it, we'll never knock down any pins.