If an interviewer makes some crazy assertion, then I pretty much flip into the mode of "how do I get out of this interview ASAP, as there is no way I'm working with this idiot". Whereas in the office, I'm the guy that sends the really difficult mass email that calls out his boss, if it is really needed. Engineering is not interviewing, and vice versa; why would you expect identical behaviors in both?
And yup, I am self selecting out of the situation where the interviewer is not an idiot and just 'testing' me. I'm fine with that, because I'm also selecting out of a job where people aren't willing to treat me with respect.
Interviewing is largely voodoo; we shouldn't be inflicting cognitive pain on people based on our random selection process. The only measure that has ever been shown to be predictive is past performance. So let's talk about my past performance, and leave this amateur hour psychological testing in the trash bin where it belongs.
Don't try something because you sit down and think "hey, I am going to create an artificial situation, and then guess at what a good candidate would do[1]." Then see if he does that.
[1] Which is often "what I (imagine I) would do."