Here’s a story to make your skin crawl! A traveler in South Mexico had the misfortune to be the victim of a fly that lays its eggs in living flesh. The eggs hatched into four worms beneath the skin—three of them were removed easily by a doctor, but the last one was proving more problematic. The inventive doctor suggested leaving a piece of meat on the leg next to the wound. Surely enough, six hours later the worm had been tempted halfway out and could be removed entirely. Medical costs that are claimed on travel insurance usually aren’t as grisly as this!