Working in a factory is hot, hard work. My hubby does this for a living. He worked all week near a furnace that heats up laminate to glue to office furniture. It is probably at least 20 degrees hotter in that part of the factory than it is standing outside in the parking lot.
So when he finally is done after working 6 days, nothing feels quite as good as taking off that pair of hot, heavy old work boots and planting his size 10½ bare feet in the nice cool grass!