Yes, this was my first job as an 'employee' of a staffing company. They took $11/hour and gave me $7/hour to re-package and re-palletize boxes of P&G products. Literally we would open a box of 4 shampoo bottles, take the bottles out and then repackage then into a box of 6 bottles and stack them back up on a pallet. To open the boxes we put them on a conveyor belt that went through an oven to melt the glue on the box. I had to stand at the exit of the oven and grab the scalding hot glue and rip the tape off the boxes as fast as I possibly could. The scalding hot glue would stick to your hands while hot air was blowing in your face out of the oven. No AC. 8 hour shift 7 to 3 with no lunch break, only two 15 minute breaks to use the bathroom (couldn't go otherwise). No AC in the warehouse in the hot summer in the midwest.
Another fun job was to re-palletize boxes. A forklift operator would lay an empty pallet on the ground, then put a row of 25 full pallets next to it in a long row. You had to unstack the 2nd pallet onto the empty one using a new stacking pattern that was more stable. Then the 2nd pallet would be empty. Repeat the process down the row as fast as you can go getting cuts on your hands from the cardboard boxes, leaning over your back lifting heavy boxes without AC in a hot warehouse.