Tourette's?

One of my co-workers who reads this blog mentioned that this kid might have Tourette's syndrome (not the type that spews out curses). I thought this was a possibility, but he doesn't have any tics or twitches in muscle. His voice sounds somewhat normal and he doesn't make any strange sounds. There's also nothing unpredictable about him - well, now the whole class has found his outbursts quite predictable.

Prof: "The exam is in 2 weeks."
Kid: "Wait, the exam is when???"

Prof: "So what are principal components?"
(kid interrupts and jumps in before anyone else could answer)
Kid: "Principal components is where you want to find the principal components of a data set to simplify your data."
Prof: "You're using the words 'principal component' in your definition of 'principal component'?"

(after lecturing about topic)
Prof: "Any questions?"
Kid: "I don't think we ever went over how to find L."
Prof: "That's what we're going to talk about next. I just went over the theoretical model, now we will discuss it's use."

Kid (interrupting prof): "Well, for those of us who took 586 last semester, we did factor analysis for the final project."
Prof: "That's good... good for you."
(The funny thing is: I'm sure not too many took 586 the previous semester because it's not the typical course progression, e.g. you wouldn't take Advanced Physiology the semester right after Intro Bio, 586 is one of the basic requirements while this class is more advanced and requires many pre-requisites.)

Prof: "I only have half an hour... should I cover this or ask you to read it?"
(prof flips through his notes)
Kid: "Cover it next time."
Prof: "Nice try."