Reason To Avoid Them: Yes, a good rib is a thing of beauty, but an object of your potential affection teeth-ripping pork fat means the only rub you'll be getting is a dry one.
Culprit: Corn on the Cob
Reason To Avoid It: Like wings and ribs, corn on the cob falls into the gnawable category and should thus be avoided. It also leads to the very fun game of do-I-have-anything-in-my-teeth, which let's you take turns analyzing each others years of dental neglect. Oh wait, that's actually not a very fun game at all.