Agreed. I understand that people usually see humour in heavy-stuttering, and i guess in some cases it can be acceptable, but in my views it depends solely on consent. If the stutterer gives consent to joke about their condition, then that's fine, but laughing about someone's disability behind their back is completely disrespectful and offensive. OP, please don't normalize laughing at stuttering. I'm assuming you are a stutterer yourself, and surely you're aware of the anxiety and struggle that can come with it. Imagine being in a situation like that and people "laughing their asses off" when watching it. It comes down to the difference between "laughing AT someone" and "laughing WITH someone". Consent is the key difference between the two.