Tomorrow, next week, or 60 days from now how will I know to fear or avoid very specific words, sounds, or situations? Did I download an App to my brain that controls me? Experiences on my timeline create these fears and avoidance habits. Pschologists talk about "one trial learning" when a phobia is created. We who stutter can create a fear of stuttering and then this "App" runs in the background of our communication system. Listen and learn.