Messages attached to tennis balls have been finding their way into the house all this series, with notes having included 'Dan is an actor', 'Daley has slaughtered Hazel in the press' and 'Jackie is 100% going on Friday'.
The latest message from the outside told the group that Gina was the bookies' favourite to win, and wasn't wrong.
But do the housemates believe it? Gina certainly didn't, branding herself a "loud mouth" and suggesting she'll be evicted tonight.
Taking credit for the stunt, Charlie Hill told the Daily Star today that he and his pals have been using a slingshot to get the balls over the security fence and into the house.
Charlie, who is local to the show's studio in Borehamwood, North London, told the newspaper: “We just want to stir things up a bit.
“The security guards don’t have a chance of catching us because it takes them ages to get round to that side of the house.
“Once they do, we are already gone.”
Big Brother have tried their best to stop the housemates reading the messages, but so far their efforts have proved unsuccessful, leading to plenty of paranoia and speculation amongst the group.
Although the messages so far have only frustrated Jack, who told the group this week: “I don’t understand why they haven’t given us one saying if Kate’s baby is a boy or a girl, that’s all I wanna know!"