Do you teach online at all? If so, you’ve got a discussion board set up (or at least, you should). We always want the students to be active and engaged on the discussion board, but when they do, things can get unwieldy pretty fast. Ever had that student who just refuses to hit “Reply” and instead always starts a new thread? That’s irksome. On the flip side, sometimes you get an original post, and then a reply, and then a reply to the reply, and then a reply to that reply. You end up having about 18 nested layers, with the last few being only a few pixels wide. Not cool.