Through the years I've heard my fair share of tripods falling, lenses shattering, but have you ever had a photographic nightmare where everything is just working against you?
When I was hiking in Alishan in Taiwan, a member in my tour was a real big Sony fan and had an FF Alpha, probably a 850 or a 900. He also had a RX100 and that was his primary camera for that portion, as our footing wasn't great and a big bulk DSLR camera was just too cumbersome. (However, the D40x that I had was just perfect haha.) Even though the lighting was harsh and there were extremely bright and dark areas, you'd still want to capture some shots. Well, his camera bag zipper snagged, entombing his camera in the fuzzy warmth of his bag, probably for the rest of his vacation. As a photo enthusiast, that was one of the most disheartening things I've seen. It's not even a dead battery for crying out loud!
I would imagine that this tale is quite tame compared to what you guys have seen.