I just remembered Bunnygate from BB10. Noirin heard that someone said she was like a bunny, hopping from group to group, and was intent on finding out who (everyone denied it and tried to blame someone else, of course). A bona-fide BB whodunnit, Agatha Christie would be proud.
It was such a bizarre, but entertaining, night of live feed and, of course, gave us Freddie's iconic Shakespearean smackdown of Karly, Lisa, Noirin etc.