What’s an industry secret in the field you work in?

https://www.reddit.com/r/AskReddit/comments/ijlj88/whats_an_industry_secret_in_the_field_you_work_in/

Industry secrets

This Reddit thread is about what’s really going on in everyday businesses. It simply asks people “What’s an industry secret in the field you work in?” There’s a couple hundred responses, like: Goodwill throws away most of what is given to them; in vodka, the bottle costs more to make than the vodka; it’s easy to get library fines waived; bouncers make up the rules; there is way more butter than you think in almost every dish at fancy restaurants; etc