my first real job was as a grocery store over night stock boy. they put me on the cans and jars. believe or not that was some pretty hard and heavy work! especially when you are told you "have to" do a certain amount. little did I know there was a snack isle and also tissue isle that the senior guys spent the whole night coasting through. I would kill myself only to go to take a bathroom break and pss by a guy sleeping on a pallet or PTSD guys hanging out talking!