Know spoke before about cross-contamination. But think really people need to understand the severity of getting sick from cross-contamination.
Cross-contamination is when gluten like foods come in contact with food that is suppose to be gluten-free, or when it gets skin contact with someone who has Celiac Disease. The severity of this is that crumbs that do contain gluten get on food, or skin, it can be ingested, and make the person ill.
Upon thinking about cross-contamination. Some thoughts occurred. Such as getting cross contamination from dish clothes, dish scrubs, that are washed with same 'glutened' foods. Handling pet food with your hands, that contains gluten. Like cat food, dog food, bird food that could seem harmless. Items like toaster ovens, and skillets that contain hidden gluten. Of course most of these can be avoided by having separate cleaning towels/'scrubbies'. Washing your hands excessively when finished feeding pets/animals. Using different appliances that do not contain 'glutented' items. Just a thought for Celiac's out there, that are wondering about hidden gluten!
Have a good day!