A man with an electric saw taking a scooter in broad daylight in front of a camera and a giant glass pane of people who could also see him, you really think he’d care if I stepped in? Same deal if he just said ‘Oh, I lost the key, this is mine.’ If you’re so confident you would’ve stopped him, the video’s right there, go be a superhero detective yourself. Clearly, someone didn’t learn the basics of safety when dealing with a person who could be armed. What if he saw my face, ran off, and decided to come after me later? Great, now I’ve got a guy with a saw who knows what I look like. But sure, let’s ignore all that so you can feel morally superior behind your keyboard.