- [Dr Greene is supervising various junior doctors who are examining a patient. Penny turns up late]
- Keith Greene: OK, so can anyone tell me why cardiac output would rise from four to seven litres? Anyone at all, while we're still young?
- Penny Valentine: If the patient's in the second trimester of pregnancy.
- Keith Greene: Very good. Now the only thing we need to be careful about is Mr McGregor here dying of shock when we tell him he's pregnant!
- [to Penny]
- Elliot Hope: Dr Greene described your performance today as "passable", which coming from him is a five-star rating, I can assure you. Well done, Penny.