Why are those special paperback editions of books that you buy at the airport so large? They're really heavy and annoying. If you want a big, heavy book - buy the hardback.
Why do people drive in front of me at 30 mph on a 60 mph road, yet when you pass through a village, where the limit is 30 mph, they accelerate to 40 mph? Tiny Toyota driver, you know who you are. NB: Both the car and the driver were tiny!
How on earth do those ethernet-over-power devices work? The very idea that you can get the internet from your wall socket is bizarre. I think it's black magic.
Why is it snowing again? Enough Winter already!