There are a lot of “fail” videos on YouTube. A *lot.* Many clearly document failures, but some show what might look like a failure to a layman but isn’t to someone who understands what’s actually going on. Such as the video below. It shows a Russian 9K22 Tunguska mobile anti-aircraft gun firing on what I presume to be a testing ground. For most of the video the gun is shooting off towards a target off towards the horizon; the tracer rounds seem to have a lot of dispersion, and a lot of them bounce off the terrain or the target and fly off into the sky. Anyone who has seen enough firearms testing knows this is pretty normal, but it might look like a “fail” to a layman. So I was underwhelmed with the failtastic nature of the video. Until about the last ten seconds or so, when the pucker factor went up to 11 and then ripped the knob right off.