Men in the food industry, what ingredients or practices are used which cause you to avoid the product(s)?

I used to work at a meat packer, I over heard some managers discussing how “plump” some of the meat looked. After asking around, I realized the distributor was injecting shrimp with a “water solution” to make them appear larger and weigh more. What are your stories? What about the opposite? What are some things that are used which give you the desire to consume them?