[plake]

It probably depends on the candidate pool, but I've had a few interviews where the candidate can tell they missed the bar, and genuinely just wants advice on how to work on it.

Definitely if they start trying to haggle, or pressure you into something, that's a hard pass, I'll say whatever bullshit it takes to get them out the door. I'm happy to help out the former at the expense of fielding the latter, though I can understand why not everyone is!