[jkarolyi]

>I personally don't say "sir" and never did... if i was hiring and a candidate was like "sir" this and "sir" that, i would find that very annoying.

I think this has something to do with the area of the country where you interview. I sell my technology consulting services to corporate managers all over the country, so I am "interviewed" several times a month.

I would never say "sir" or "ma'am" to an interviewer in New York or California, where such formalities are considered annoying. But in the southeast and Texas (where I think Lube is from), it's considered polite and respectful and might even score you some points.