I mean I can understand why that person may be a**hole. Having a stutter can be frustrating that can cause a lot of negative emotions within one self. Most of us learn to have a healthier mindset about our disability cause you have to if you truly want to be happy in life. You also have to understand we’re on different paths in life so that particular person that’s upset about their life just havnt reach that point of clarity yet but doesn’t mean they won’t ever get there. Take their rude comments with a grain salt and don’t take it seriously. That can go for anyone that just seems upset in life. They often are just struggling within themselves.