We hate to break it to you, but the world is chock full of unscrupulous people, folk who don't care one bit about screwing you to get ahead. Thankfully, unscrupulousness can be kept in check by vigilantly recording everything that happens to you. We know, the prospect sounds daunting, but a good dash cam will at least keep you covered while driving.While most of the time your dash cam will record nothing but the drudgeries of daily driving, if you're like this guy, you'll be glad you had it on when something fishy goes down. The setting is a traffic-clogged freeway somewhere, and the characters are played by our dash cam owner and one of those unscrupulous people we were talking about earlier. Follow the jump to see why it's always good to have a dash cam rolling.The original video on YouTube has been made private. You can still see the video if you click here The video has been reposted on YouTube by someone else and is viewable below.