It used to work at Apple tech support like a decade ago. I know bc I worked IT and our little program gave us a heads up about A: how long people had waited in cue and B: if they had cussed a.k.a were angry. When angry customers got to me there’d be a little angry emoji on the screen lol and those customers still tended to be cussing when I picked up. Anyway, I was always told that was how you skip cue and confirmed bc on days where the average wait time for a cx was say 20 minutes I’d get angry cussers that had only been in line for a few minutes. On the flip side I can confirm this doesn’t skip cue for Verizon (noticeably) as I’ve cussed that robot 10 times to no avail. Dmv doesn’t care either, but Apple once did.