Humans have been battling each other with swords, sticks, lightsabers, and other long staff-like things for pretty much as long as they’ve been around, but we rarely get a chance to practice this ancient art in the modern age of computers, cars, and strip clubs. Which is why the Cardboard Tube Fighting League is so great. The rules are simple: grab your tube, engage your foe, and the first one to break their tube loses. It’s a great way to have fun while honoring your primal urges, and with upcoming events in cities across the country, there’s no reason not to go forth and do battle.