A few weeks ago in a lecture class class (which means last quarter) I had the distinct displeasure of sitting by two very loud and talkative girls (or rather, they sat by me, because I'm one of those overeager types who gets to lecture 20 minutes before it starts to get a good seat.) They whispered and chatted and texted through the entire lecture. Yet, at the two minute mark before the class let out, when everyone started surreptitiously packing up their stuff, one of the girls whispered, "God, it is SO rude when people do that!"
Er... this coming from the girl who talked through the whole lecture, who probably didn't take one note and likely has no idea what the professor even discussed?
I had to wait to get out of the classroom to start sniggering. But boy, it was pretty funny.