Thumb messages 2: Bristol - Coventry

Bristol Coventry, coach. Just found out that it would have been possible to book the trip to campus, instead Coventry. But this is not advertised, as it makes the trip longer. In fact, the driver asked not to tell anyone. Question: would it be too egotistical too book it anyway, knowing that you are making a whole busload of tired people get 20 min later at their destinations?