^ I assume this is just for comedic purposes. Elevators are a terrible way to "measure racism" Any time anyone comes into the elevator, I automatically move as far over as possible. It's polite (to give the person room) and a space issue (You know american's and their space) I would also move my purse over in front of me to save room. I do this automatically, but now that I think about it I wonder if this is being construed as racism by any overly sensitive person in the elevator with me.
edit: Also I can honestly say that I've never been apprehensive in an elevator. No one is comfortable, I assume the other person feels the same way, and the ride is too short to worry about anything, plus the doors will always open to a surprise (other witnesses?) so even if I would feel weird in a typical situation outside of an elevator (sketchy looking man coming near me) I just wouldn't in an elevator. I don't know, maybe I'm the wrong person to analyze this because I lived on the 23rd floor for 5 years, elevators were a daily ritual for me.