Murphy ;(

Laws :
If anything can go wrong, it Will .
Nothing is as easy as it looks.
Every solution breeds new problems.
Everything takes longer than you think.

Murphy's Law of Thermodynamics : Things get worse under pressure.
Murphy's Constant : Matter will be damaged in direct proportion to its value.

Murphy's computers laws

Constants aren't & Variables won't.
Bugs will appear in one part of a working program when another 'unrelated' part is modified.
The subtlest bugs cause the greatest damage and problems.
Adding manpower to a late software project makes it later.
Software bugs are impossible to detect by anybody except the end user.
Bugs mysteriously appear when you say, "Watch this!" , corollary: If you call another programmer over to see if he knows what's wrong the bug disappears.
The probability of bugs appearing is directly proportional to the number and importance of people watching.
The amount of damage that a string of code can do is inversely proportional to the length of the string

When designing a program to handle all possible dumb errors, nature creates a dumber user

Computer sadism: When the computer causes physical or mental damage to a person and can't receive such a return favor (due to management rules).