May not apply to you, but I work at a quite large supermarket in my hometown every saturday and I get questions from all sorts of people, like 3 or more per day. I felt very uncomfortable talking to people at the start, especially to coworkers. Had pretty heavy blocks, just like those you described, very often and it just sucked working in that setting. Also got lots of nice "answers", like "Do you can breathe?" or something, also this facial expression, that shows that the other guy probably(?) thinks something along the lines of "Aight, he's possibly retarded and is wasting my time." After half a year or so some coworkers realized, that there is more going on in my mind than my speech suggests and began to treat my like .. well .. a normal human being and helped me out, when I can't get a word out. Someone said something like "You are trying your best to help everybody, even if it's hard for you. You're doing the right thing and fight. When others won't see that, fuck 'em. They're not worth your efforts." And that helped me realize, that basically, we're - or most of us - are struggling with this shit every day, every minute, probably until we die. In contrast, others have to deal with me/us just a blink of an eye and the reactions should not make our lives harder, just because they don't know how to handle these situations (or don't know, that it's just a stutter). As well as I have my problems, others do as well. With that in mind, I try to help, if I can, but won't take another "burden", when my block creeps someone out or sth.