The Pig of Doom is the Snaffling Pig's spice lunatic brother. Granted, he's a bit melodramatic and there's no actual end-of-world darkness involved with his concoction, but it's fair to say these bad boys don't mess about. The heat comes from Bhut Jolokia chilli (aka 'Ghost Chilli'), which is one of the hottest chillies in the world and it's one that keeps on building once snaffled.
These are only for the spice-loving brave; we've seen a few people shed a tear or two taking them on. That said, if you're a Man vs Food type challenge-loving swine, then they are right up your street/farm.