I began my journalism life writing about business, so sometimes, to my source’s surprise, I start asking more questions about marketing strategy and business plans than about nail-biting adventure. In some cases, my questions draw a blank stare. When that happens I make a mental bet with myself about how much longer this guy will be in business. Usually, though, there may be a brief blank stare — of surprise — before they light up and launch into all that is prudent to divulge about the business side of what they do.