As a keen observer of our quixotic metropolis, Derrick Freeman laughs a lot. Out of disbelief, in bursts of joy, as punctuation to his stories. Freeman has lived here long enough to tell great stories. One time Peter Jennings came to the Thursday night Kermit Ruffins gig at Vaughan’s, where Freeman held the drummer stool for most of the last 10 years. As the start time passed unobser...