The Big Brother housemates have been given this week�s task that will enable them to win their luxury shopping list but it has a twist.

All housemates will be required to work in shifts to prevent milk leaking out of a giant vat that has been installed in the garden.

They have to use body parts to prevent the milk from escaping�however, to actually win their shopping budget housemates have to fail the task, without knowing.

One housemate, Imogen, has been named as saboteur of the task and she must ensure housemates fail the task without letting on to her fellow contestants.

Housemates have spent 24 hours plugging up the vat to stop milk from leaking, a task they are not very happy about.

However, Imogen has already come pretty close to breaking rules as she whispered to Nikki: "Don't worry about pressure to stop the milk. Don't worry, if it sprays, it sprays."

"It's only a game, if you can't stop the milk, it doesn't matter."

This is one task that no housemates are very enthusiastic about, Richard and Lea have discussed how to get out the lost cause, Richard said to Lea: "Look. You can't go to bed, because Mikey's gonna make us do it. Does he honestly think we're going to be able to do this?"

Lea said negatively: "The milk's down already,"

Richard continued: "Like I said. I'll speak my mind. If I don't wanna do it, I won't do it. I'm not afraid to say to him I'm not gonna do it. I just don't task like this, I said to Big Brother that anything involving endurance and patience is not me. If its creativity and things like the majorettes, fine, but this? And you can't do it either,"

Lea said of the task: "It bores me. I've got no patience at all."

Keep up the good work housemates!