Good ones so far. I have another beef one.
Well before the whole wheat allergy/gluten free thing was popular, a cousin of mine did a big standing rib roast for a family dinner. He did it in one of those cooking bags for turkeys and roasts and the directions say to throw in a spoonful of flour so the bag doesn't stick.
Long story short, he ended up in the hospital for dehydration after a rough 2 days. Everyone else enjoyed the roast. Turns out he had a wheat allergy, and celiac. Lived with it his whole life without knowing. Everyone just thought he had a weak stomach up until that point.