Grow up will you. By saying that I was being disingenuous you were saying that I was being insincere about my reply. That is tantamount to calling me a liar without going so far. End of.
It's quite possible to be insincere without lying outright. If I'd meant to call you a liar then that is the word I would have used. I used the word disingenous because that is what I meant.
