You know those people who sell fruits like oranges at freeway (or highway or thruway) offramps? Did you ever ponder where they got the fruit and what type of arbitrage is involved there? Well, I did, briefly, once and I assumed that they bought it from supermarkets and then resold it for a higher price for those in a hurry to get the Vitamin C. But now, a disturbing voice has whispered in my ear another possibility: the produce has been retrieved from supermarket dumpsters after the market threw it out because it had passed the sell-by date. I don't know whether that's prevalent or not, but it is something to consider.