My take is that if your opposites act rude towards you bc you stutter then just let him go and that is not your problem at all. If you get mad at them you are just making urself angry with others' faults. If not then if they get perplexed about what is going on you can tell them 'I have a speech impediment'(don't need to say it out exactly just as stuttering) and they can understand why you are talking in that way.