I spent the summer working on a dairy farm in nw Idaho near the Washington line. Loading hay bales.
They made alfalfa bales and they weighed 95 pounds. One guy drove the truck, the other guy stood in the flatbed and stacked the bales as the pop up loader put them onto the truck. About 120 bales in a truck load.

The two of us went back and stacked 'em in the barn.
Then we switched jobs, the stacker drove and the driver stacked, and we went back for another load.
We put 1,000 bales a day in the barn. 95 pounds, and 3,000 reps, each bale had to be lifted 3 times. Good God.

We got 9 cents a bale. To split. Twelve brutal hours in the sun for $45.