Optimism is the fuel that drives the entrepreneurial spirit, so it isn’t surprising that most small business owners consider themselves optimists. Too much optimism, however, can get a small business owner into trouble. A business plan built solely on the “best case scenario” is like a house of cards, one gust of wind—or fire or wrongful termination lawsuit—and the entire business can come crashing down. That’s why smart business owners temper their innate optimism with a healthy dose of reality. In other words, they learn to manage risk.