Well, paddymac, Illinois has a law that only allows 5% sawdust in hotdogs... does that help?
I eat haggis, here. My family shudders, but it's really quite good. Just don't think about what's in it.
I've never been squeamish (I'm always the one who gets summoned to chop the feet off the turkey, remove the giblets, saw the 12 lb. roast in half, etc... I'm a farm girl. It's dead.) but I must say that I regard tripe (have you looked at that stuff?), eyeballs, and feet, (oh, and heads) aren't food. Nope. I'd boil the feet and heads, though. Broth.