Flimflam, I too worked outdoors in NO heat for most of a decade. I delivered packages (big and small) for Purloator Courier, a precursor of Federal Express. Only FedEx, when they set up, got smart and put A/C in the vans. Their couriers bounded into customers' offices on the hottest days, looking crisp and sounding energetic. We Purolator losers dragged ourselves out of our trucks, and stood sweating and bedraggled while they put our package together. No wonder we were all snappish. Biggest favor they ever did me was to fire me!
Ever notice that it's the people who've never worked outdoors a day in their lives who rave, "Oh, I *love* summer"? Stick 'em outside in 95 F. with 55% humidity moving boxes for a day, and they'd sell their shriveled raisin souls to get back into the A/C.
-- Paul W.