It would suck if stuttering happens when you do the callback 😭 . Anyways jokes aside. IMHO there is no point in calling people out. If they make fun of you be the bigger person and move on. Don’t drop to their level. That being said , making fun of someone’s disability or handicap is never nice. True story. One guy used to mock me in school every single day. He was a determined modrfkr. You know what…he started to stutter. I don’t know how they happened but it did. We became friends after many years during our master’s program. Dude’s stuttering was worse than mine. Go figure 🤷🏻‍♂️