I had the Pig Trotters once. Always made sure to cook the stuff thoroughly after that.

Actually, it’s pig feet. Of course. Wikipedia notes, perhaps mordantly:

The cuts are used in various dishes around the world, and have increased in popularity since the late-2000s financial crisis.

Because they’re cheap. It’s hard to command a premium price for the things, but they can be prepared with skill. I had some in Paris many years ago. They were ordered for us, perhaps to have fun with the dumb young Yanks.

Don’t recall whether they were drizzled with Elmer’s Glue, though.