I never really understood irrational fear until two years ago, when I happened across a picture on one of the I Can Has Cheezburger blogs. It showed a foot sporting a pedicure with long toenails.
I wigged. (And no, don’t even ask me to post a link. I’d rather punch a kitten in the face than go looking for that picture.)
To this day, in the summer, you won’t catch me looking lower than someone’s knees, just in case they might have froufrou toenails.