Several years ago, the maths department I was involved with was having an official photograph taken. They were worried, however, that all of the people who were going to be in the photo had glasses, but they didn't want to project a strong stereotypical "nerd" image and were concerned about the publicity. They were trying to think up people who wouldn't be out of place to include in the photo and struggled for ages to come up with anyone appropriate. I walked in on them after they'd been discussing it for over an hour, heard the dilemma, and asked, "Why don't some of you just take of your glasses for the duration of the photo?" The idea hadn't occurred to any of them.