No, I don't think I've ever told someone I have a stutter (I'm sure most people figure it out). I'm sure I had some minor disfluencies during the interview; I typically don't notice when I'm stuttering unless I block up on something and have to wait a second or two, or unless it's really bad like it was on the phone interview. Everyone now and then I'll catch a minor stutter and think to myself "I probably do that a lot more than I realize". That being said, I think that might be part of the reason my stutter is fairly mild; if I was conscious of every time I stuttered it's possible I'd be a lot more preoccupied with it.