Everyone knows Murphy's Law: "Anything that can go wrong, will..." - Here are some other Laws you may not have heard!  

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.  

Lowery's Law of Home Repair: If it jams, force it. If it breaks, it needed replacing anyway  

Beach's Law: Interchangeable parts aren't.  

William's Law: There is no mechanical problem so difficult that it cannot be solved by brute strength and ignorance.  

Lane's Law of Supply and Demand: The one item you need is always in short supply.  

Cannon's Karmic Law: If you tell the boss you were late for work because you had a flat tire, the next morning you will have a flat tire.  

Norman Einstein's Law: If it's stupid but it works, it isn't stupid.  

Col. Murphy's Law of Combat: Never forget that your weapon was made by the lowest bidder!