I have recently (well, for quite some time actually) have found that as I age (i'm 56) I have an increasingly lower tolerance for noise. Maybe it's just cabin fever from working at home with the family around, but I simply cannot concentrate with people talking around me or other ambient noises. And there always seems to be something lurking in the background - the neighbor playing music that sounds like an idling truck, another neighbor mowing his lawn for the umpteenth time this week (or is it today?) or my family talking nonsense or narrating everything they do. It simply drives me crazy and, while I'm naturally irritable to begin with, it makes me even more so.