There's a podcast I really enjoy called The Moth. The newest episode has two stories. Both are very good. The first one is not Lego related (but worth listening to). The second story is about a teacher and some shenanigans at the school with Lego bricks. I recommend everyone to listen to it. Some of the best parts are the discussion of which bricks the kids like and what they do with them.
For some reason I can't get the link from iTunes. (I got it automatically with my Podcast app.) But here is a web link to the latest episodes:
The one you want is this one:
And again, the Lego-related story is the second one (female speaker) somewhere halfway through the show.