BOSTON ? Two North Shore men were among several arrested this weekend during the Boston Police Department’s “Operation Squeeze” program, but one of them wasn’t arrested for what you might think.Paul John-Baptiste, 27, of Lynn was among six men arrested in Dorchester at about 1 a.m. Saturday for violating the John Law.The men’s arrests were relatively routine after a female officer posed as a prostitute and the men tried to solicit sex for cash, police said.However, the arrest of a Revere man and four Boston men about an hour later during Operation Squeeze was more of a fluke than a planned sting.Police said Gerald Sam, 32, of Revere and four other men were in a car when it stopped and one of the men tried to solicit sex from the officer. But when police searched the vehicle officers found a loaded firearm on the floor of the car along with several open containers of alcohol, police said.Sam and three others were charged with unlawful possession of a firearm, unlawful possession of ammunition and possession of a firearm with a defaced serial number.