Another Ceiling Gasline Question

Recently I had the entire top floor electricity redone. As the electrician was running the lines thru the ceiling, he took a ceiling fan off the ceiling and saw a cap. He unscrewed the cap and told me that he encountered a live gas line and capped it back up. They finished the work but told me i should get the gas turned off thru that line.

We moved in 3 1/2 yrs ago and had no idea about this. Is it possible that there was just old gas in there that came out when he unscrewed the cap? Do i need to call national grid to inspect? if it is a live gas line is it unsafe to keep it the way it is?

By afroskully | 10/06/2009 9:08 AM