Mario Romero worked at one of the busiest, most high-profile research laboratories in the world for 30 years. But, if you ask him, it never felt much like a job.“Let me tell you, I never felt I was going to work, never,” said Romero, who retired as a corporate accountant in 2009 from the famed Bell Labs headquarters in Murray Hill.“I felt that I was going to school, I felt that I was going to learn something, that I was going to contribute to something,” said Romero, 64. “I didn’t ever drag my f...