The microphone is a double-edged sword, allowing you to send your voice across space and time to echo through the ages, and also giving anyone within its range the chance to humiliate themselves in front of the world. Seeing as they're the ones near hot mics all the time, reporters, politicians, and dignitaries seem especially prone to these gaffes—although athletes also seem to have a particular problem with them. Long story short, assume you're always being recorded, and not just by Facebook and the NSA.

1. Rookie anchor A.J. Clemente, who lost his job on his first day. Read his reaction on Twitter here.