So what do you as an engineer in mixing recording track laying etc find extremely annoying.?.
For me : If ive been working on a film for a few weeks and nearing the end with the director and some little snot (usually clueless but to his world) comes in from the production team to watch some of what the movie is like and starts to through his 10cents around. "oh dont you think it would be better if you did this ... " Maybe you could try this or less of that!!!
Hours of work then just to show him /her that they should rather shut their mouths and leave it to directors , producers and engineers .