We had a large gilt that was saved back for breeding that was damn near impossible to keep in the pen. She learned how to jump over the gates. After a couple days she figured out that when I'd come running, it meant she was about to get whacked with a shovel, and would jump back in and stare at me. That lasted about a week until I'd had enough.
So we ate her. And, damn, did I enjoy it. Bacon, chops, ham steaks. I win.