For legal reasons, the production team made obviously fake banknotes for the scene where money comes flying out of a cashpoint. The £10 notes feature the Doctor's face and the phrases "I promise to pay the bearer on demand the sum of ten satsumas" and "No second chances — I'm that sort of a man". The text is a reference to the Doctor's actions and dialogue near the end of "The Christmas Invasion". There were also £20 notes featuring producer Phil Collinson. These had the phrase "There's no point being grown up if you can't be a little childish sometimes" printed on them, misquoting the line originally spoken by the Fourth Doctor (Tom Baker), in "Robot", "There's no point in being grown up if you can't be childish sometimes." All notes and the cash machine were labelled "London Credit Bank".