What does inventory mean in this context? Are we talking about moving warehouse stock? If so, I once had a temporary job as a warehouseman at the height of a very hot summer. It was nothing like the temperatures in California, but it was hot enough. You try muling great heavy boxes down impossibly narrow aisles in 80 degrees plus temperatures.

The firm I worked for, a well known high street chain I might add, combined shit wages with a rigid discipline, which included random searches at clocking out time. Yes, they got away with it because the nature of structural unemployment in Britain means that people in the lowest socio-economic groups have two choices. They either take those sorts of jobs or they stay on the dole.

I suspect that the conditions at Amazon are endemic in warehousing, and that Amazon type warehouses are only the tip of the iceberg as far as low paid unskilled jobs are concerned.