Re: 'Exit interview'
In my entire life, I have undergone exit interviews twice. Mind you this was in Europe (EU).
At the first one I was able to honestly state why I was leaving after 9 years of working (as a neurologist in a psychiatric hospital). The employer had not fully complied with the agreements made regarding scientific research to be done there by me. Of course I clearly stated the reason for leaving. Nonetheless, even after years (I live close to the institute in question), relations remained good and (more importantly) they took to heart my advice to stop pretending that serious research was possible with them.
The 2nd was after the takeover of the general hospital, where I worked for years, by a private healthcare entrepreneur. Fortunately for me, I was able to retire early and therefore it was no problem for me to tell that same healthcare entrepreneur, that his policies would send the entire hospital into bankruptcy. He looked at me like I wasn't right in the head, but suffice it to say that this hospital does indeed no longer exist (the government ordered it closed due to mismanagement and debt).