Things I don't understand...

I sit in a room with six co-workers in a corner of my office. It's called the "newsroom." The guy next to me, who honest-to-God peruses the IMDB pornography database daily at work, does a few things that I don't understand. Please keep in mind that he's pushing 40, if he isn't already there.

Every day for lunch, whether he's scarfing down a burrito, munching on a salad or clogging his arteries with, from the way he looks, the umpteenth pizza slice of his life, he "wears" a napkin as a bib. Who, might I ask, wears a bib while eating, aside from children younger than 5? Who does that? Furthermore, he drinks ALL of his Diet Pepsi's/Cokes from the can -- with a straw. He doesn't peel his banana; he removes a plastic knife from his draw full of eating utensils and applies a swift cutting motion to the stem and then he peels it. He doesn't pull apart a bag of potato chips to create an opening; he cuts a corner with a freaking scissor. But it's the bib and, to a lesser degree, the straw that perplex me.