Complex problems have simple, easy to understand wrong answers. To err is human, but to really foul things up, requires a computer. A computer program does what you tell it to do, not what you want it to do. When putting it into memory, remember where you put it. Never test an error condition you don't know how to handle.
Opportunity always knocks at the least opportune times.
In order for something to come clean, something else must get dirty. Everyone lies, but it doesn't matter, since nobody listens. Nothing is ever done for the right reason. If everybody doesn't want it, nobody gets it. The secret to success is sincerity, once you can fake it, you've got it made .