As the years go by, I have found that some of people who gave me a bad feeling later turn out to be even worse than I first suspected. In my book "How To Destroy A Tech Startup" I describe this guy Milton, who is the villain of the story. He did many things that seemed vaguely creepy, most of which I didn't put in the book because it didn't seem relevant. But I just recently learned he was in prison on charges of child pornography. So, yes, wow, my instincts were right. There was something creepy about him and eventually his creepiness turned out be far worse than I first guessed. The story of Milton is the most extreme example I can give, but I've worked with others who I could tell milder stories about. I had a bad feeling about them, and 10 years later, when I learn even more, the facts justify the bad feeling I had about them.