His scheming and stirring has not stopped since. In last night's episode, Nick quietly confided to Thomas, a computer designer from Ulster who was one of this week's two potential leavers, that he had had a dream that Thomas would not be the one to go. Nick later trotted into the girls' bedroom and while massaging Caroline, the other name on the eviction list, told her he had had a vision: that she would stay.
When he is not playing his rivals off against each other, Nick spends a lot of time lying to them. Contrary to what he has told his housemates, friends in the outside world have revealed that Nick is not a senior Lloyd's broker but a junior, he is not the vice-president of Fulham FC but just one of 77, and, worst of all, never had a wife who died in Australia.
What has proved doubly infuriating to viewers is that while 24-hour filming throughout the house allows them to see every bit of Nick's duplicity - even his secret poaching of the house's cigarette supply - his housemates are completely in the dark. Worse, they love him. Easily the most popular man in the house, Nick has never been nominated for expulsion by any of them.
On Tuesday night, Nick was in the garden telling Craig, a Liverpudlian builder, that Caroline and Nichola, a textile designer from Bolton, didn't have a "brain between them". The following night, the two women sat discussing how much they liked Nick. "He's so lovely," said Caroline. "But why's he so nervous?"
It is true that Nick has been much more subdued lately - he recently confided to the others that he was worried that the public might hate him. Some believe that Nick has somehow discovered just how much the public do hate him. Encouraged by its readers, the Sun is running a "kick out Nick" campaign; security guards surrounding the house had to be issued with tennis rackets after photographers took to knocking tennis balls into the garden emblazoned with the words "Nick lies".
The Sun's latest theory is that Nick had smuggled a mobile phone into the house and was getting daily briefings from a friend. The show's producers did a search but found nothing. Bizarrely, the wind may be starting to change slightly in the public's mood. The Star newspaper has launched a rival pro-Nick campaign and when the official Big Brother website yesterday asked visitors for their views, it was flooded with e-mails from viewers who claimed to like him.
Although they won't admit it, both Channel 4 and the programme makers must be hoping that Nick makes it as far as possible. The Big Brother house would be more boring without him. Peter Bazalgette, whose company, Bazal, is making the programme, refuses to be drawn too far on the cult of Nick. "Clearly he's a huge talking point but the success of the programme in other countries has been based on simply finding 10 people who are reasonably extrovert, opinionated, robust and experienced."