Zen and the art of tying shoelaces
The next time you make a crack about someone being too dimwitted to tie his shoelaces, ask yourself this: Are you tying your own laces the right way?
Fear not--there's no right or wrong when it comes to shoelace etiquette (so far as we know), but be aware that your knot of choice is only one of 31 ways to complete the task, at least according to Ian's Shoelace Site. It just goes to show that every walk of life has its own technology.
(Bonus question: What does the term "flugelbinder" have to do with laces? Answer here.)