THE Big Brother celebrities looked like ghoulish extras in a horror film yesterday - after their first boozy night in the house. Leading the field was unpopular racing pundit John McCririck, who was only too happy to show off his poor form as he stripped down to his white pants. And actress Brigitte Nielsen nearly came through on her promise to go naked in the house, with just a skimpy towel covering her assets in the sauna. All the contestants looked worse for wear as they wandered round the house bleary-eyed after Blazin' Squad rapper Kenzie's 19th birthday on Thursday...