 The security guards lock Calley, Ronnie and Georgina into the animal house, and they await their fate with trepidation. The directorof the institute turns up, but her immediate concern is for how they gained entrance. Calley is nursing her monkey scratch, worrying that it may have been infected. They notice a phone, and make a call to John, Calley s boyfriend, who works at the lab, but at the same time the director has worked out whose entry card was responsible. The director notices the phone call being made, and listens in - cutting in at a pertinent point to insist on John come in. When he arrives, Ronnie threatens to go to the press, but the director astutely points out that there s a more interesting story to be had - that of a schoolgirl affair. John drives the girls home, defending the work of the laboratory. As Georgina leaves the car, Calley mentions to John that her scratch is still bleeding, and they go to the hospital to have it checked. Still tailing Georgina, Julie Corrigan overhears about the monkey scratch, and starts telling people about there being a monkey on the loose; it starts a new crazy of monkey impersonation, led by Neil Timpson, who chalks  N  on the back of kids  blazers - meaning they have nits. Eventually, Julie herself becomes victim to this, but Trevor, on playground duty, sees this and reports to Mr. Hargreaves. Georgina has been sent her first modelling assignments by her agency, but the first turns out to be cancelled. As she walks to the next one, she is drenched by a passing car, which ruins her chances for the second appointment. Mrs. Monroe speaks to the First Formers about the Black Death, rats and nits, but it s a thinly disguised attack on Neil Timpson, who is eloquently belittled. Tegs, who seems to be coming round to the idea of staying permanently at his real mum s house, has been told to bring a friend round for tea. He tries to persuade Matthew, but his old friend has too much on his mind, with the impending court case for arson, and instead he takes Justine. At the PTA, Mr. Robson is surprised to find out that Mike Bentley is going to train in America, but he s not the only one in the dark, as Robbie finds out when he mentions it to Mike himself. Mike bursts in on the meeting, and tells them all that he won t go...