The best business ideas often seem laughable at first glance. So if you’re hearing a chorus of “No’s” it may actually be a good sign… Google, Facebook, LInkedIn, Airbnb — they all sounded crazy before they scaled spectacularly. So don’t be discouraged by rejection. Instead, learn to hear the nuance between the different kinds of “no.” That’s what Tristan Walker did. After stints at two successful startups, he launched out on his own with Walker & Company, makers of the Bevel razor — and learned to navigate the entrepreneurial minefield of investors who may or may not share your vision.