We have an education and business culture that tends to reward quick factual answers over imaginative inquiry. Questioning isn’t encouraged—it is barely tolerated.
The correct way to punctuate a sentence that states: "Of course it is none of my business, but -- " is to place a period after the word "but. " Don't use excessive force in supplying such a moron with a period. Cutting his throat is only a momentary pleasure and is bound to get you talked about.