Second, look at your hamburger or chicken. It should not appear pink or have juices that are not clear. Third, ask how long they leave perishable food at room temperature. Cooked foods need to be kept at 140 F or higher. Or, they need to be refrigerated within 2 hours.
County fairs are a place to have fun.
There's no reason to be afraid of the food. Just keep your eyes open for unsafe food handling. For more information about food safety, contact your local Extension office. Some would tell you to read one of those books that promise to make you successful. That might work.