It is easy to get discouraged when unwelcomed events occur. The trick is to put them in perspective: Most will pass and become unimportant with time. It's easy to feel like a single failure or rejection is the end of the world, but it never is. In fact, setbacks often give you an opportunity to turn a rebuff into a win. One time early in my sales career, I was literally thrown out of a prospect's office because she felt I hadn't respected her tight schedule. I went back to my office, wrote a letter of apology, and sent a gift designed to make her job easier. She became a good customer, and we became lasting friends.