I’m the exact same way. My favorite moments are when someone is being rude during my stutter by saying things like “I’m waiting” or they do the little eyebrow raise and nod indicating they’re waiting. I get mad and can clearly explain to them how rude it is of them to do something like that to someone with a disability since it really shows their character. They’re often times left stuck because they weren’t expecting me to call them out so fluently. I’d like to add. From what I’ve seen most stuttering stems from poor self image, anxiety, and a history of people reacting poorly to your stutter. When you’re truly angry you seldom think or worry about those anxieties due to being distracted by said anger.