I'm Allergic To (redacted)

I'm allergic to cats. That made it really tough growing up, because I lived on a farm, and there were lots of animals. Horses. Pigs. A goat. Cows. Chickens. None of those are cats, so I wasn't allergic to any of those.

But we had a Caterpillar brand tractor, and every time I saw it I'd suffer from a massive stroke.