30 Things You Learned In School That Are Virtually Useless NowBy Camila Villafane / October 4, 2017 Climbing Ropes Unless you’re an avid Crossfitter or a pole dancer, this one was totally useless. But if Matt Iseman ever invites you to participate in “American Ninja Warrior,” you’ll be all set. Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30