I’ve had many similar experiences. For example once in religion class in was asked a question and the answer was “muslim” and I was there for about 10 seconds (though it felt like a minute) just going “mmmmmmmmmmmmmmmmmm” and that is probably the worst experience I have of it in class There is one other guy in my year that stutters and he’s very liked and lots of people like him so I think that the reason I don’t get bullied or laughed at is because of him