no they dont work. they are make work weasels. everything the do is substandard at best. theyll expect you to fix their most recent disaster while they go off to lunch. the ones they got driving trucks are on so much speed they can burn holes in the piss cup. that's for local trucking, not long haul either. what the fuck do you need speed to stay awake for when you go home every day? i saw what one that got hired to be a welder did. 3 weeks of him unable to do more than scream and throw the stick if he got a spark going when they tried to teach him.  how they get hired as safety inspectors and management is beyond me. most of them are basically illiterate outside of corporate logos and apps. nc and sc are both currently investigating a lot of them over health violations, insulting several congressmen and women and counterfeit money printing.
United States