I do have some sympathy for the drivers though  having worked as UPS driver back in my younger days....
 they time motion study you to death and  expect x number of packages delivered in 8 hours without taking into account traffic, lack of parking places, ferocious  large dogs with big pointy teeth , even more ferocious  itty bitty dogs with really pointy teeth, lack of building/house numbers, locked gates, lonely old ladies who hold your signature pad hostage while telling you  all about their grandson in California who is so thoughtful and never forgets to send a present to his grandma on her birthday even though he is all the way across the country  but he is smart as whip that one, smart as whip, and doing so well, but of course  everyone expected it ever since he won the science fair  in first grade, only six years old ,and won best entry in the science fair, not just for the first grade, mind you , no for the whole school, and they had big kids in that school , 6th graders some of them , and he won best  entry , smart as a whip that one, the big ones didn't like it one bit, not one bit , being beaten but a little boy like that, but he was smart as whip, and he worked so hard on that,  you should have seen his little face, so proud, well we were all so proud of him but of course who wouldn't be ,  I think I have a picture here of him standing next to his experiment with his ribbon,  why don't you  come in for a cup of tea and I'll just find that picture .....