*I added these
Law of Mechanical Repair: After your hands become coated with grease, your nose will begin to itch and you'll have to pee.
Law of Gravity: Any tool, nut, bolt, screw, when dropped, will roll to the least accessible corner.
Law of Probability: The probability of being watched is directly proportional to the stupidity of your act.
Law of Random Numbers: If you dial a wrong number, you never get a busy signal and someone always answers.
Law of the Alibi: 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.
Variation Law: If you change lines (or traffic lanes), the one you were in will always move faster than the one you are in now.
Law of the Bath: When the body is fully immersed in water, the telephone rings.
Law of Close Encounters: The probability of meeting someone you know increases dramatically when you are with someone you don't want to be seen with.
Law of the Result: When you try to prove to someone that a machine won't work, it will.
Law of Bio-mechanics: The severity of the itch is inversely proportional to the reach.
The Coffee Law: 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.
Murphy's Law of Lockers: If there are only two people in a locker room, they will have adjacent lockers.
Law of Physical Surfaces: The chances of an open-faced jelly sandwich landing face down on the floor are directly correlated to the newness and cost of the carpet or rug.
Law of Logical Argument: Anything is possible if you don't know what you are talking about.
*Law of Printability: You download the the PDF file to fill out so you can get a $100 rebate on that expensive washer you just bought. After printing it you notice that the type is garbled and unreadable. You can only get the PDF file from one source, so how will you ever be able to print it off so you can send it in? Additional question: why can't they just let us fill out the rebate request online?
*Leaping Lizards Law: As you're jogging along the sidewalk you see there is a big rattlesnake ahead seconds before you get to it. The height of your leap over the snake is directly proportional to the length of the reptile. (With millimeters to spare).
Care to add any of your own, just for fun?