The expression “Achilles heel” refers to a person’s weakness. It originates from Greek mythology (what else is new?), and refers to the famous warrior Achilles. When baby Achilles made his way into the world, it was foretold that he would die young. His mother, Thetis, understandably was having none of that. So, she packed up the family’s ancient Greek equivalent of an SUV, and hauled little Achilles to the River Styx, which by some rift in the time-space continuum was named after the 1980’s pop band. Anyway, the river’s waters were supposed to make you invulnerable. So Thetis held her son by the back of the foot, and immersed his little body in the river. Had she done that today she undoubtedly would have been brought up on child endangerment charges, but clearly those were different times. Unfortunately, the area of the heel where she was holding the little guy didn’t get covered with water. Well, fast forward several years to the Trojan War, which apparently was being waged over some stolen prophylactics. Anyhow, Achilles had a sworn enemy, Prince Paris. (You know how those Parisians are about their condoms.) In the heat of battle, Paris took his bow, and winged an arrow toward Achilles. The arrow nailed him right in the unprotected heel, in what has to be the luckiest shot in history (unless, of course, you were Achilles). The stunned warrior was heard to utter “Ouch!”, and then promptly dropped dead. It is thought that Achilles bought the farm because Paris had poisoned the arrow. (You know how those Parisians are about their poison.) Others speculate that Achilles was overrated to begin with. The End.