I love this idea, mess with their heads a bit!!!
I've an idea, big brother should make announcements saying that certain housemates told others to nominate someone and tell the housemates it is against the rules to talk about nominations.
But it would all be lies.
I think they should have a Truth or dare shopping task. With Big brother daring each housemate to complete a challenge like............someone has to stay in the swimming pool naked for about 8 hours. Then Someone has to make 100 trips to the diary room in one day and have a quick chat with big brother. And maybe make another person have to jump on the beds all day long. Then make another housemate have to crawl like a baby if they want to go somewhere.
Big brother needs to be more Crazy!!