Comment by fluoridation

Another observation is that they're either idle sounds (pen clicking, finger tapping) or necessary secondary sounds made during some activity. It's literally impossible to unwrap a piece of candy without making some noise, and damn near impossible to stir a liquid without the stirrer hitting the container once.

>id guess if the sufferer expects we all dislike certain sounds, causing them intentionally is especially hateful?

I think it's pointless to attempt to look at it rationally, given the reactions I've heard seem entirely irrational and disproportionate.

I remember one time I was at work and a coworker on the opposite end of the room was using what I thought was the exact same model of mechanical keyboard I was using, with blue switches. I had never realized just how loud those things were until then. I kept glancing at him and could feel myself getting unreasonably annoyed, but I really had no grounds to say anything under any circumstance, given I had been using those very same switches in that same office very recently. What really struck me was how the same noise would sound pleasing when I made it and annoying when someone else made it, and I wondered if I had bothered someone with my typing, or if it was just me. I don't know if I'll use my own keyboard with clicky switches if I share an office with someone again.