I have had that type of person in my class before; in fact, I have one in my class right now. It's definitely not just limited to adults.

It's VERY annoying. It makes me want to tell them to clam up. I want to hear what the professor is going to say, not what you're blabbing on about!

Dreams are weird; I'll often have dreams about things I haven't seen or heard in months or years. Veronica Mars dream OMG! Though it's a bit disappointing you weren't Veronica's detective partner or something cool. Don't worry, I usually manage to screw up my dreams too. DISAPPOINTMENT.