I guess caveat emptor is just too complex a concept for some people:
Would-be vendors were required to submit their food plans, with samples. All submissions were graded on a long list of criteria, including food safety, nutrition, use of local food, business plan, ethnic diversity and home-cooked taste (even though all the food must be produced in commercial kitchens). A taste test was conducted by a four-chef judging panel. Hot dogs and sausages were strictly forbidden, because the city is only interested in “healthy options.”


Oh, Canada!
But then again, maybe I’m misjudging them:
http://www.hurryupharry.org/2009/03/20/canadians-hold-galloway-at-bay/