When we play DoomRL, we can generally avoid doing some obvious things and do others. Avoid acid/lava, shoot enemies, use med packs when you need to and so forth.
For the most part.
Sometimes, though, you do something so unbelievably stupid that you just facepalm at the mere thought of doing that. Note that the thing that you post must be something that you wuld not do normally and it happened due to sheer stupidity, NOT due to the RNG screwing you over. I made this thread so people can talk about those without having to make a Mortem thread.
I was playing AoP on HNTR. The last few levels went very well, had a number of large med packs, some decent armor (Nano-modded red, was hoping for Powered red), when I got to the Cyberdemon. With my Gatling Gun + Eagle Eye (Cateye build, for anyone interested), I was doing well. But I had to start running when I got low. I got blasted by rocket splash damage, but was still in yellow. I got into position, started shooting...and got hit by a rocket that killed me instantly. Should have paid better attemtion to my health. And I was at a good position to win the game as well.
Pics optional, facepalming is not.