a few minutes of silence

so i've been working at a refinery for the past six or so months and the office that i'm in is shared with an inspector and the HVAC system overhead. the inspector i share the office with is out of town and today, for a few minutes, the HVAC was shut down. it was actually quiet in my office for the first time since i've been here... aside from my the music i have playing. i actually hit pause on the media player to enjoy the silence.