Fortunately I have gotten much better at managing it compared to when I was a child but still, thinking of doing something like teach a class is nearly unthinkable to me. I just don't know how people manage to talk while deeply concentrated in something. I have to think about pacing myself otherwise whoever is in the other end will have trouble understanding anything at all.

That and appearing like I'm stuck thinking about something while in reality the whole answer is already formulated in my mind and I'm just having trouble saying it out-loud. At least I'm decently good at coming up with synonyms on the spot :)