There is a kid in my first period Spanish class, we'll call him Grady, because that's what his name is, who is very, how shall we put this?... loud. He demands attention, from before the bell rings until the minute class is over. Throughout the class kids tell him to shut up. Nobody thinks he is terribly funny.

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Ah, in fact, I just sent him outside.
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It's always interesting having students like that in my classes. I can handle the disruptions and they generally provide light humor. The disruptions are funny not for their content but by the pure absurdity that the student embodies. Everyone shares the experience of witnessing someone who lacks nearly all inhibiting reflexes. Haha, type in "Lack of inhibition" and the first entry that Google gives you is a page on ADHD, or attention deficit hyper-active disorder.