> They at least don’t require candidates to get dressed up or to worry about controlling their facial expressions [...] Expecting candidates to remain in Professional Mode while experiencing what might be extreme disappointment is unkind.

If more of us flipped out a little at such treatment, maybe managers would stop doing it. Or in other words: give negative feedback to being treated negatively.

I don't mean anything unseemly, but indeed, maybe break that professional barrier a bit. "Oh, no. I'm so terribly disappointed, you know? Just to be clear this is a rejection? Wow. I've never had anyone call to reject my offer before. ...Well, gosh, this is awkward, isn't it? Oh wow, I really wasn't expecting this. Totally out of left field. Well, uh, thanks for taking the time to reject me, anyway. Take care."

(How are they to even know they just seriously distressed you, pointlessly, if you don't tell them?)