I thought this was going to be a new interview, but I remember reading this interview and discussing it at work back in the 90s. I know, this anecdote doesn't really give this much of an air of legitimacy, but archive.org does confirm that it's been around that long (which of course validates my memory more so than if Bill Gates actually said this stuff).

He'd been in business for an awfully long time already in 1995. Where's the evidence to suggest he was so ridiculously unpolished after all those years?

Nobody says "No! No! No!" to an interviewer over and over again.