If you've ever wanted to challenge someone to a duel, but lacked the sabre skills, you can now brush up on the weekends. The Chicago Athletic Association Fencers Club offers classes for beginners as well as advanced fencers on weeknights and on Saturday and Sunday mornings downtown. Pretty soon, you'll know the difference between an "epee" and a "foil" (hint: it has to do with where you can stick it). [via Daily Candy]