Rockville based chain California Tortilla has reached a milestone. According to Washington Business Journal, the chain has sold 5 million burritos. 5 million! I prefer to say they’ve sold 5 megaburritos, but whatever floats your boat. The big winner of a year’s worth of indigestion, er, delicious goodness, was college student John Baroody of Herndon, Virginia, who purchased number V at the Ashburn Village store. Congratulations, John! I’m sure your feelings at the moment of…