Re:
Zone of Truth
Questioner: "Failure to answer a question will be interpreted in a manner highly unfavourable to you."
2 and 3 overlap with the name piece: if someone gave me the answer "You can call me Timothy (etc.)" I'd ask the question again: "What is your name?". Continued obfuscation would end the interview real fast.
Indeed, but they do exist.
"Well you never asked" situations are usually the fault of the questioner, who should have asked unless it's really obscure (and a demon hiding in someone's shadow would to me qualify as obscure).
And realistic. Not every third Sunday, though: I'm trying to defend against it happening once, because once is all it takes if the assassin is successful.
That, and the definition of "good deeds" very often depends on whose side you're on. The character of mine I'm referring to here has been in parties that have done covert ops in an enemy nation that have resulted in some serious messes being made - all "good deeds" to us and our home nations but not at all good deeds as seen by the place we were messing up.
And we-as-PCs already know that nation knows who we are (or thinks they know, their info is a bit inaccurate) - at one point we stole a copy of a supposedly top-secret intelligence brief that had half our names in it along with some half-decent sketches of some of us, though the matching of names and sketches was largely out to lunch.
And we also know this nation has the means of reaching out halfway around the world to screw with us.
So yeah, a bit of good old-fashioned paranoia ain't always a bad thing.
Expect it when you least expect it.