Unloading 94lb bags of cement from a box car in the middle of a Southern Oregon summer heat wave. I worked three years on swing shift pulling 27s from a round table at a plywood plant. The round table was at the end of a long 200+ degree dryer. During summers it was often over 130 degrees at the round table. Worked and went to college at the same time. Don't remember a lot from those years - I was perpetually tired. It wasn't really a crappy job, just a hard one and a good challenge. It did reinforce the idea of getting a college degree.