Veronaz, you've made your point quite clearly, and may I say frequently, that you disapprove of the OP's response to this phone interview. Believe me when I say we all get it.
Cass2591, thank you. I am not quite sure why Veronaz feels the need to so persistently blame me for this woman's behavior. As I have said previously, I did not encourage this behavior - she really did start right out of the gate with nonstop talking and continued from there.
I think I'd've stayed on the phone just as you did, OP, because there was a trainwreck fascination present in the whole monologue. You did get the information you needed -- in spades! -- and if this candidate contacts your employer again, you're well-prepared.
The few minutes spent on listening? Consider the story as a job perq. There are a few of those with most jobs.
I'll admit I'm treating it like a learning experience and
as an amusing story. Next time, thanks to the advice here, I'll be less timid and interrupt an interview hijacker.
If I may defend myself just a little bit - the organization I work for is a very public entity, and that it's been drilled into me that we should never leave a community member feeling disgruntled because we don't want our reputation to suffer. Part of me felt that I had to humor this woman because I didn't want her to go off thinking, "Well, that museum is just awful!" At another museum I have worked for, we had to "fire" a few volunteers because they were just terrible, and they turned around and badmouthed us to anyone and everyone who would listen. It took a lot of work to undo their damage, and after seeing that I try very hard not to create situations where people are angry at my workplace in general.