Random Murhy's law:
Miksch's Law: If a string has one end, then it has another end.

Selected Murhy's laws:
Universal Field Theory of Perversity (Mule's Law): The probability of an event's occurring varies directly with the perversity of the inanimate object involved and inversely with the product of its desirability and the effort expended to produce it.
Melcher's Law: In a bureaucracy, every routing slip will expand until it contains the maximum number of names that can be typed in a single vertical column.
More Murhy's laws...
If there is a possibility of several things going wrong, the one that will cause the most damage will be the one to go wrong.
If you perceive that there are four possible ways in which a procedure can go wrong, and circumvent these, then a fifth way, unprepared for, will promptly develop.
After adding two weeks to the schedule for unexpected delays, add two more for the unexpected, unexpected delays.
In any structure, pick out the one piece that should not be mismarked and expect the plant to cross you up.
Murphy's Law of the Open Road: When there is a very long road upon which there is a one-way bridge placed at random, and there are only two cars on that road, it follows that: (1) the two cars are going in opposite directions, and (2) they will always meet at the bridge.
Matter will be damaged in direct proportion to its value
You can never tell which way the train went by looking at the track.
An expert is one who knows more and more about less and less until he knows absolutely everything about nothing.
All great discoveries are made by mistake.