Years ago, I went to an outdoor Dave Matthews concert. It was ear-ringingly loud. I was talking to my friend Brooke during one of the songs when a woman in front of us turned to shush us. I was a little stunned, but Brooke just looked at her and said, "Sorry. I didn't know we were in a library!"
Sometimes I feel like that at my office. The American agencies I've worked for are much louder. Or at least, less hostile towards volume.