I had to make a tough call the other day when serving drinks on a cold November evening. Every cocktail I considered was fruity and frivolous—not appropriate for dinner guests huddling in depressing post-time-change darkness. Then I remembered: Liquid antibiotics.
Despite all the wonderful advancements in medical science, humanity does forget about a clever technique from time to time. Case in point: we used to recycle non-processed penicillin from patient's urine, and now we don't anymore.