I have a few things to say about this. First, you're not a bad person for feeling this way. It is likely that hearing someone stutter reminds you of your own stuttering and brings up some kind of emotion there...seemingly a negative one. This would be a good thing to talk about with a therapist, parent, or other trusted person (therapy isn't just for nuts, ya know!). As long as you don't act on it and offend people, but rather remain sympathetic and remember the golden rule (treat others as you would like to be treated), you're completely entitled to feel however you want. This applies in all arenas of life. Also, I've been told on numerous occasions that after a little while, people stop noticing my stutter. As the one who is speaking I of course notice every block and stammer, but others often do not. I am also hyper-aware to when others are stuttering. I think this is the case here. You likely feel as though you're bothered by it more than people without stutters because you're hyper-aware that it is happening and you can better understand/feel the possible emotions of the person speaking (perhaps embarrassment, shame...another reason this would be good to bring up to a therapist). To reiterate, the important part is that you recognize how you feel and DON'T let it affect the way that you treat people. Instead, try to figure out why you feel this way. If you can do that, you'll likely learn a lot about yourself and your stutter as well.