What planet is this man from? Verbatim transcript from the end of my piano lesson:

Me: I'd like to re-schedule my next lesson.
Teach: Oh, you can't make Wednesday evening?
Me: Well, my wife is scheduled to be induced on Saturday, so she'd probably be coming home on Wednesday. So...
Teach: Oh, I see. She's being induced on Saturday?
Me: Yes.
Teach: Hm. Well, if you're sure, we can reschedule, but she might be home that same day, you know.
Me: (Jaw drops to floor, striking the piano keys on the way down.)
Teach: Ah, excellent arpeggio!