Bullying, abuse, threats, incomprehensible hours and demands, overt sexism, and racism are all pretty in-your-face signs that there might be an issue but there are quite a few more subtle signs that you should be attuned to should you find yourself in a potentially toxic environment.
This article caught my attention. Do you work in a toxic work environment? Should you be asking yourself these questions? As a key executive, leader, or CEO - you are what you tolerate. If the complaints I hear from my clients are indicative of what's going on in most companies as tolerated behavior - then I am seriously worried about the state of employee engagement and retention.