Something whimsical?
"none" may stand for "no one", but does that make it singular?
To me singular means there is one (single) thing we are talking about.
In fact "no one" (Note the word "no"!) is not the same as "one".
Stated differently, "one" is numerically 1; "no one" is not numerically 1, it is 0 (zero).
Maybe we should think in terms of singular and non-singular rather than singular and plural. Zero is certainly non-singular, I'd say, even though it's not plural. "are" is non-singular. Thinking of it like this, we should say "none of us are ...".
Unfortunately, thinking of it like this, we should also say, "none of it are ...".
![Tongue Tied [:S]](/emoticons/emotion-7.gif)
Or does "none" not stand for "no one" after all? At least not always?
Seriously, the textbook answer is "none ... is ...", but 'everyone' says "none ... are ..." if the word immediately preceding the verb is plural.
(And by the way, your colleagues who think "none" is plural really need to think about this a little more.!)