If the server at your favorite restaurant looks a bit glassy-eyed, don't be surprised. People who work in "food preparation and serving" smoke more marijuana than any other profession, according to a survey released last week by Colorado's Behavioral Risk Factor Surveillance System - an agency sponsored by the Centers for Disease Control Prevention (CDC).

After surveying over 10,000 workers in Colorado, the agency found that 14.6 percent said they consumed marijuana in some form in the last 30 days. The highest employees were the 32 percent of food servers and preparers who said they used marijuana at least once in the last month, which isn't surprising if you're familiar with Anthony Bourdain.

The runner-up was also in the hospitality industry. Just under one-third (30 percent) of people in the "accommodation and food services" industry said they consumed cannabis in the last month. Since those employees probably work alongside the top demo, it seems like the preparers and servers are bogarting joints from the hostesses and busboys.

In third place (at 28 percent) were people working in "arts, design, entertainment, sports and media" (no comment). 

Rounding off the list of top consumers was a four-way tie among of workers in "production," "life, physical and social science," "sales" and "installation, maintenance and repair." Between 19 to 21 percent of those professionals said they enjoyed a puff in the last month.

In other words, workers from many different walks of life enjoy having a puff now and then - from the artsy designers, to blue-collar maintenance workers, to data-crunching social scientists, to bubbly servers and media personalities. Now if only we could add attorneys general to that list.