I've missed many an opportunity, but this one is possibly the most frustrating.
Many years ago I stood in line to let people from Harris Comics review my work, and possibly get a job painting covers for Vampirella comics. The senior editor stepped out just as I got to the front of the line. After reviewing my work, the artist who was told to step-in became fixated with the accuracy of the costume in my painting, as opposed to how well I can illustrate and paint. Needless to say, I blame him for never getting my work in front of the right people.
You can see it anyway by clicking here.