This MarketWatch.com article lists the worst jobs; the criteria was the percentage of jobs in an industry that paid less than the median wage in 1979, adjusted for inflation, and had neither employer-sponsored health insurance nor a retirement plan.

1.   Hosts and hostesses, restaurant, lounge, and coffee shop - 87% bad jobs

2.   Counter attendants, cafeteria, food concession and coffee shop - 87 %

3.   Ushers, lobby attendants, and ticket takers - 85.4%

4.  Fabric and apparel patternmakers - 82.2%

5.   Lifeguards and other protective-service workers - 81.6%

To find out the worst jobs that round out the the top ten, click here.