I can understand a bit of nervous chatter at the beginning, or if the guy was just acting like a weird deafmute.
But if I am behaving normally (in a friendly and interactive manner), and she launches into a five minute rant about a desultory topic, that's really aggravating. It also makes me very uncomfortable to wonder if she might be having mental problems or under the influence of strong drugs.
I can say "let's enjoy the music for a second" or "what's your favorite TV show?" a couple of times, but after that my only option is to end the appointment early.
