Common weekend warrior tales would suggest that a beer bottle makes a good weapon in the event of a bar brawl. But would a full or an empty bottle inflict the most damage, and would that damage include fracturing a human skull? These important questions were answered in 2009 by a team of researchers from the University of Bern with their seminal paper, “Are full or empty beer bottles sturdier and does their fracture-threshold suffice to break the human skull?” Dr. Stephan Bolliger and his colleagues tested the breaking energy of full and empty beer bottles using a drop tower. Moreover, they discovered that a “full bottle will strike a target with almost 70 percent more energy than an empty bottle,” but that either is capable of breaking a human skull. Good to know. In a great twist of irony, Dr. Bolliger and co. picked up a 2009 Ig Nobel Prize in the “Peace” category.