There's another peeve of mine: when you are left on hold and, instead of a steady stream of bad muzak—which I can take because I can keep working through it—you instead get a voice interrupting every 20 seconds reminding you that your call is very important so please continue to hold; or, worse, a promotional announcement trying to sell you some upgrade or different service the company you're calling has on offer. AT&T is famous for that ****. I can't work through that because the talking interrupts my chain of thought.
(That's also a reason I can listen only to instrumentals while I am working, as long as I don't know the song, so I tend to play cool jazz or chamber music or lo-fi or stuff like that, because both song with lyrics and songs I already know distract me.)