Grunt auto detailer at a crappy third-rate body shop. On my first day the boss, his brother, and the only other guy who worked there left for lunch at 10am and didn't return until 3pm!!! When they got back I was told that I could go to lunch now...I promptly drove home, called the shop and told them I wouldn't be coming back. I don't think I even did an work that day.
Close second and third: dishwashing (lasted one shift) and opening the local Arby's (as in being there way before the store opens to prep. for the day, they sevred breakfast back then) every single weekend for 6 months. Half the time I'd have to sit in the parking lot until the manager would show up, usually still drunk from the night before.
Asphalt though....yikes