I met one once. A guy from a different department at work that I'd seen around but never spoken to. We were having a chat on the walk out and he was stuttering really badly. Way worse than mine was. I didn't stutter for most of the 1 minute conversation (a minor miracle in itself), just a couple of little ones near the end as we were saying goodbye. It wasn't until I was buckling my seatbelt that I realised why my couple of little, barely perceptible, stutters had made him look at me funny.