After your hands both become coated with grease, your nose will begin to itch and you'll have to pee.
Any tool, when dropped, will roll to the least accessible corner.
When you try to prove to someone that a machine won't work, it will.
The probability of being watched is directly proportional to the stupidity of your act.
If you dial a wrong number, you never get a busy signal and someone always answers.
If you tell the boss you were late for work because you had a flat tire, the very next morning you will have a flat tire.
If you change traffic lanes, the lane you were in will always move faster than the one you are in now.
If you drop the lid to the jelly it always lands with the sticky side down.
When the body is fully immersed in water, the telephone rings.
The probability of meeting someone you know increases dramatically when you are with someone you don't want to be seen with.
The severity of the itch is inversely proportional to the reach.
At any event, the people whose seats are furthest from the aisle always arrive last.
As soon as you sit down to a cup of hot coffee, your boss will ask you to do something which will last until the coffee is cold.
If it can happen it always seems to 