Downin3,Mary & DG..
spot on folks...as it is drivers today combat many connected issues; circadian, fatigue, irrational scheduling, prolonged layovers.....and other usual occupational hazards (lack of skill?)....one less off the list can only help stay atop the ship....
While a simple breath analyzer test (0 reading at my latitude) is no skin off my back; there will always be a contrary opinion!
cheers all..