@everyone
You've all pretty well denoted my side of the argument, and have also raised some interesting points (analysis of something spoken in the moment loses its spontaneity, etc.).
He likes to poke and did so in gest, but I felt that the sentence was not grammatically incorrect, so challenged him to define his argument. He could only reply with posts regarding basic double negatives, which did not satisfy my challenge. What you all (y'all in my native tongue, though I rarely write in southern colloquialisms) have commented is in line with my way of thinking.
And by grammar nazi, I meant no offense. I'm an engineer, but pride myself in using correct grammar in writing. I find that many engineers are quite lacking in this department. I don't find myself correcting other people's grammar, unless I am speaking with someone who actively and admittedly wants to improve their grammar, but do get 'brain pain' when I hear certain misuses.
My English grammar learnings were in excess of two decades ago. Because it was a pairing of words I find myself using more frequently, I wanted to gain an understanding of how it is perceived by those who are well versed in grammar across a broad range of learning and social experience. I can honestly say that I am quite satisfied. Thank you all.