No matter where you work, there's a chance that there are plenty of secrets about the industry that the general public would not even be able to guess. As someone who has had a lot of jobs, you'd be surprised how many companies that seem totally legit are actually hiding seedy or even downright illegal secrets.
A recent AskReddit thread gave people the opportunity to air their own industry's dirty little (or not-so-little) secrets, and the responses ran the gamut from slightly surprising to pretty shocking to OMG HOW IS THAT EVEN HAPPENING?! As you read through these, remember that these things are actually happening in real life. It might make you start to question what industries aren't hiding something unsavory. Honestly, I'm not sure such an industry exists. If you want to join the conversation, feel free to share your own industry secrets in the comment section!