Mine gets a certified calibration annually, but I get called upon to be an expert witness on occasion, after inspecting the aftermath of some of those lost wheel accidents. Most legal beagles don't want me anywhere near a witness stand after reading the reports I write!
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!