Have you ever encountered someone so dumb it makes you want to pull your hair out? The kind of person who would take an IQ test, and brag about being in the fifth percentile? Well, they have the same vote as you, and just as much ability to post their thoughts online. And because they're dumb, they probably do it more than you. 

Take one Texas high school football coach, who recently went viral for a Facebook post he made in response to parents expressing concerns about difficult practices in excessively hot conditions. "Nobody has ever died from it being too warm outside," he wrote. "It builds character and forges boys into men." Of course, many people have died of heat stroke, and after one NFL player, Korey Stringer, died of it on the practice field in 2001, the NFL mandated water breaks.

But this high school coach definitely knows better than the NFL. Read his post and 20 others that might make you want to send their authors back to school.