Given the armed robbery boom that hit Dupont Circle in August, it’s no surprise that Georgetown might experience a little spillover. But unlike thieves to the east, one Georgetown robber has adopted the refined manners of his surroundings: On Aug. 26, a man approached Chris Battista, an unemployed visitor to Georgetown, produced what seemed to be a gun swaddled in a white T-shirt and demanded money. When Battista informed the man of his joblessness, the mugger apologized, then struck up a brief conversation about how he had to rob Battista anyway. He split with $43. The next morning, when he attempted to relieve Georgetown resident James Kemp of his cash, the mugger’s polite approach didn’t pay off. Kemp, who was sitting in his car, rudely drove off. According to Lt. Robert Aiello of the 2nd District, police have not made any arrests. “Normally, a robbery is a very hostile event, so this is rare,” Aiello says. —Adrian Brune