The question might sound strange, but that's something I'm asking myself. Have you ever shot a picture (or a series of it) but you weren't comfortable to do it or really did not wanted to do it?
Some quick examples, let's say you broke with your girlfriend/wife some days ago, one night you are shooting an event and you have to take studio pictures of every couple. She's there with someone else. Awkward situation right?
Another situation could be a client wants pictures with his best friend. You meet up on location for the shoot, turns out you know his friend and you particularly hate him.
Could also be photojournalist work, turns out you know the victim.
Did any of you encountered a similar situation? I'm curious about your uncomfortable stories, I'm sure some of you have had some similar experience.