3. D enters the front seat of P's taxi at the station and says, 'Take me to the university, please.' On arrival at the university, D refuses to pay the fare stating that there is no contract because there is no consideration. P, a third-year law student, says the consideration was him driving D to the university. D states that this is past consideration - because of the fact that D is now at the university - and that 'past consideration is no consideration'. What is your opinion? (ABL 5-410)