Today we'll discuss the deadly sin #2: Reacting badly to challenging questions or comments by the investors. Imagine this: you're passionate about your project, you've been working on it for a while and made a massive sacrifice to make it work. There's no doubt in your mind it can make a huge difference in the industry. You just gave your pitch and feel a sense of pride and satisfaction. And now it comes: one of the investors starts making harsh comments, openly questioning the value of your business idea and asking you tough questions. How do you respond?