> Behavioral questions don't tend to freak engineers out.
Speak for yourself. I'm far more relaxed when diving into a technical question than when playing a guessing game about what social signalling I'm supposed to be doing at that moment.
You're not supposed to be trying to be someone you're not. If you have to put in that much effort during your day job then you won't be happy. You just need to relax and be yourself, it not only makes everyone more comfortable but it lets you and the company start to evaluate whether or not you're good cultural fits. You'd be pissed off if they mis-represented the culture there during the interview process, and they have just as much right to be pissed if you act completely differently (in a negative way) when you start working.
If you feel you didn't accomplish much at your last job(which would be a pretty common reason for quitting), then a question about it would be pretty stressful, since the company is evaluating you based on work you didn't find to be your best.
