One question I always ask, that seems to always get good results:

"Are you happy here?"

Have you ever watched an interviewer change from upbeat to depressed in moments? Have you ever seen a person turn a shade of grey? Have you ever watched your interviewers start to argue about what the meaning of true happiness might be, before conceding that neither of them were happy?

My all time favorite, from a gentleman at TD Waterhouse, nearly 20 years ago:

"Is anyone really ever happy at work?"

They made an offer, I didn't accept. Nearly everyone in Corporate America looks visibly depressed. Doubly so in our new COVID world.

Someone remind me what the point of all this is again? Because I'm not really sure I get it anymore.