"I Want To Go Home"

We have heard this plea (or threat) more times than ever before this year, and it's only Week 5!

Rebecca, Dixie and Brigitte have been most vocal on the subject, requesting an early departure every time something doesn't go their way. From the way it seems, BB is pretty much ignoring these requests, asking them to sleep on it, or just to leave the Diary Room. The requests for voluntary eviction seem half-hearted, so there is probably no reason to go further into it.

Obviously the BB production has spent a lot of time, effort, and money on the HM selection and the last thing they want it to see one of them actually walk out over something petty. Not to mention that the HM would probably regret it after not very long at all. But you have to wonder if BB opened the Diary Room doors to the House and to the "outside", which one would they walk through?

Are they just trying to get BB to back down on his punishments? (Both Dixie and Brigitte have received hand grenades they are not fond of.) Are there emotions just getting the better of them? And how serious would they have to be before BB took these requests seriously? Will we see one of them actually leave before their time comes?