More laws...

Law of the Theater
At any event, the people whose seats are furthest from the aisle arrive last.

Law of Coffee
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 Rugs/Carpets
The chances of an open-faced jelly sandwich landing face down on a floor covering are directly correlated to the newness and cost of the carpet/rug.

Law of Location
No matter where you go, there you are.

Law of Logical Argument
Anything is possible if you don't know what you are talking about.

Brown's Law
If the shoe fits, it's ugly.

Oliver's Law
A closed mouth gathers no feet.

Wilson's Law
As soon as you find a product that you really like, they will stop making it. (this one is true every time!)

Doctors' Law
If you don't feel well, make an appointment to go to the doctor, by the time you get there you'll feel better. Don't make an appointment and you'll stay sick.

Law of Mechanical Repair:
After your hands become coated with grease, your nose will begin to itch or you'll have to pee.

H/T Shelly