I get you. I have those feelings too. Excitement accentuates my stutter, however, so there’s absolutely no effort in me not trying to finish their sentence. 😂 I will say, I have exactly one person in my life whom I don’t mind them finishing my sentence for me, and sometimes request (I guess it’s with my eyes?) that she does so to help me end a loop I’m in without overwhelming myself with the effort and making it worse. I can’t explain what it is about her or how it works. But I’m not okay with others doing it.