Fair warning if you woke up in an exceptionally good mood today and don't want anything to ruin it. Stop reading right here, right now. Seriously. I'm even tossing in a throwaway sentence to give your brain a chance to communicate with your eyeballs to divert your attention elsewhere (here's a fine piece on the science behind Nigerian scams). Still reading? You were warned.
One of the latest videos to go viral on YouTube shows a group of middle school kids relentlessly taunting and verbally abusing Karen Klein, a 68-year-old school bus monitor who tries her best to ignore the insults but is ultimately driven to tears. It gets worse (and better).