Extremely insightful, I have had the same experience and I agree. I somehow have the ability to "sniff" out these types pretty quickly, something about their conversations give them away.
Here's an real life example: I worked for a small startup years ago and the founder invited the engineering team to lunch at a restraunt. The founder proceeded to berate the waiter for no reason and yell at him, it seemed like completely psychopathic behavior and then I caught the smallest of smiles from him after the waiter walked away beaten up(metaphorically speaking) by the barrage. I knew right then this person was not someone I wanted to work for and put in my notice shortly after.
Here's an real life example: I worked for a small startup years ago and the founder invited the engineering team to lunch at a restraunt. The founder proceeded to berate the waiter for no reason and yell at him, it seemed like completely psychopathic behavior and then I caught the smallest of smiles from him after the waiter walked away beaten up(metaphorically speaking) by the barrage. I knew right then this person was not someone I wanted to work for and put in my notice shortly after.