Why doesn't glue stick to the inside of the bottle?
Why is it that to stop Windows, you have to click on "Start"?
Why are there floatation devices under plane seats instead of parachutes?
Why do they sterilise the needles for lethal injections?
Why do people who know the least tell it the loudest?
Why is it considered necessary to nail down the lid of a coffin?
Why is it that in America, if you take off all your clothes and walk down the street waving a machete and firing an Uzi, terrified citizens will phone the police and report: "There's a naked person outside!" ?