have never: put fixer in first, forgot a part of a three part developer, dropped a tank with film in it and had it break open, forgot to fix, shoot with a camera with no film in it for about 40 frames... shot an empty film holder, load a film holder backwards, open the (exposed) film holder facing the ground glass, started to break down a camera with the film holder still open in the back or set up and realise I have no/wrong film holders or roll film back, shoot with strobes on an old shutter with different sync settings, on the wrong synch setting or any other stupid stupid things
Neither have I....Can I have a prize, too?