Working at a place that has a "taco truck" come by everyday. I know for a fact that they call in on each other. Some of them are working hard to go about everything right. Others are cooking food in their kitchen at home and selling it. This pisses off the ones who are doing it right. I had one pull in selling out of a trailer, behind his pickup. The other truck pulled in and wrote down his tag. She told me that he had no license. Just a thought.