If there's any way they can do it wrong, they will.
This list of alternative and specialized applications of the fundamental law of pessimism has been blatantly stolen gratefully borrowed from Murphy's Laws:
- If anything can go wrong it will at the most inopportune time.
- The greater the value of the rug, the greater the probability that the cat will throw up on it.
- 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 (or the one to go wrong first).
- The other line always moves faster.
- The chance of the buttered side of the bread falling face down is directly proportional to the cost of the carpet.
- In any hierarchy, each individual rises to his own level of incompetence, and then remains there. (Also known as the "Peter Principle")
- Anything dropped in the bathroom will fall in the toilet.
- After you bought a replacement for something you've lost and searched for everywhere, you'll find the original.
- The best golf shots happen when you are alone (and the worst when playing with someone you want to impress).
- Left to themselves, things tend to go from bad to worse.
- Traffic is inversely proportional to how late you are, or are going to be.
- A falling object will always land where it can do the most damage.
- The probability of being observed is directly proportional to the stupidity of one's actions.
- You will always find something in the last place you look.
- Whatever hits the fan will not be evenly distributed.