Should I be honest with postdoc candidate about awful lab working environment? I work as a postdoc in a lab that is extremely mismanaged.  The head of the lab micromanages all the staff, often claims successful work as his own, and rejects new ideas that are not from him.  All the employees (both scientists and technicians) are miserable, and some of the team has become destructive, creating regular conflicts between team members that the lab head refuses to resolve.
The head of the lab is hiring a new postdoc, and I, as the only other postdoc, will meet with the candidate as part of the final interview step.  I am already planning to leave, but haven't told anybody yet.
My question is:

If asked by the candidate, should I be honest about the working environment?
If not asked by the candidate, should I tell the candidate anyway?

I feel it is dishonest to let someone enter a destructive work environment without them being prepared.

UPDATE: I had no chance to speak to the candidate alone; the lab manager stuck by the candidate's side the whole time.  Interestingly, the candidate later declined the offer, so perhaps they were astute enough to recognise the environment for what it was.  Thanks to everyone for the help and advice!
The general rule in these situations is that being honest is okay (though consider that it can be risky if word of your honesty makes it back to the boss), but it's important to stick to facts and to your opinions about your own situation/experience.
&quot;The team is destructive&quot; is not something you should say, nor is &quot;the lab is mismanaged&quot;. Those are your opinions about other people: stay away. What you can say is &quot;I feel like I've had trouble getting credit for my work&quot;, &quot;I wish I had more freedom to choose the direction of my work&quot;, etc. Even better is to use specific factual information (note: opinions are not facts), like &quot;I've only been able to get one first-author publication in the past three years.&quot;
That said, take care of yourself, too. If you need a recommendation for a future job, it might be necessary to bite your tongue a bit. It's good to want to warn a candidate off gently, but consider that once you are gone someone is going to get that position, and it's even possible that the person who does will have a different experience than you did.
Also related: https://workplace.stackexchange.com/questions/137037/can-i-tell-a-prospective-employee-that-everyone-in-the-team-is-leaving (not an identical situation but I think the advice there still applies).