Yes. That's what I have experienced - although I don't seem to have problems with S's. It's other words, instead. I was watching this [old Dustin Hoffman interview](https://www.youtube.com/watch?v=qgbMBFI6WrE). He's a very good talker, but there are times he stutters and gets flustered. One wouldn't recognize it as being abnormal, because he's so collected and calm. I think we mild stutterers need to chill out, and learn to recover better, rather than panic whenever we stammer.