Back when Sun Electric Co. made the automotive industry's best test equipment, they put their slogan on every machine- - - - -"We test, not guess!" If one of my mechanics changed a part, he had better be able to tell me WHY he changed it, or he would be looking for a job the next day.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!