There's no foolproof way of detecting bad bosses and environments. What you need to learn is: (1) How to deal with difficult people. It's very likely that you

There's no foolproof way of detecting bad bosses and environments. What you need to learn is: (1) How to deal with difficult people. It's very likely that you'll have to deal with personalities and egos like this at some point no matter how carefully you attempt to situate yourself. (2) How to make yourself marketable enough that you can easily walk from uncomfortable workplace cultures. At some point you're going to work with a colleague or in a company that you cannot stand, so be ready for this.