I actually once had a high school aged kid that worked in a music store ask me to turn down an amp I was checking out. I asked if there were lessons going on, and he said no. So what's the problem? He replied "it hurts my ears...". This puzzled me, so I asked well what do you play? "Clarinet". So I just shook my head and unplugged everything and started to leave. Before I got to the door the owner asked where I was going and I explained that I couldn't check out the amplifier I wanted to buy because it hurt the clarinet players ears. She assured me she would have a talk with him and told me my business was important to them and she hoped I would come back. I also stated I didn't want anyone fired, but I wouldn't be trying or buying when he was working. A year later he graduated and left and everything is right again. My advice to those with sensitive ears - DON"T WORK AT A MUSIC STORE!!!