As yet another person tripped over the back of my chair in yet another packed San Francisco restaurant, I finally realised that the problem was mine, not theirs. For comfortable sitting the body-hip angle is supposed to be 90-120 degree. Every chair here seems to be a kind of bucket. For a few seconds I wondered why the San Franciscans put up with such discomfort. However, I soon noticed the other patrons and the simple fact that, with a fat enough arse, thighs are raised at the arse end, but not much at the knee end, such that the correct angle is maintained.
The National Geographic 2014 Photo Contest
21 hours ago