These laws are not scientifically proven, not theoretically reasonable and not professionally endorsed, but they are irrefutably true. (I've read them before, but saw them at Funtasticus recently.)
O’brien’s Variation Law: If you change queues, the one you have left will start to move faster than the one you are in now.
Cannon’s Karmic Law:
If you tell the boss you were late for work because you had a flat tyre, the next morning you will have a flat tyre.
When you dial a wrong number,you never get an engaged one.
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.
You remember you have to mail a letter only when you’re near the mailbox.
Lorenz’s Law of Mechanical Repair:
After your hands become coated with grease, your nose will begin to itch.
Anthony’s Law of the Workshop:
Any tool, when dropped, will roll to the least accessible corner.
When the body is immersed in water, the telephone rings.
RUBY’S PRINCIPLE OF CLOSE ENCOUNTERS
The probability of meeting someone you know increases when you are with someone you don’t want to be seen with.
When you try to prove to someone that a machine won’t work, it will.
ZADRA’S LAW OF BIOMECHANICS
The severity of the itch is inversely proportional to the reach.
At any event, the people whose seats are furthest from the aisle arrive last