Dear Bus Driver,
I understand that the bus is packed making things difficult for you as well as the passengers. I think suggesting that there is still space back there may be silly. It may look like there are inches between some of us, but let me assure you most of these inches are filled, with bags, newspapers and arms and legs.
I appreciate your sharing with us that another bus is just five minutes behind. However, the buses are theoretically fifteen minutes apart, and yet we waited forty five minutes for this one, so you can appreciate that some of us are going to go with the bus in hand if you will. It would also help if you would factor in the numbers of us standing when you made you braking and turning decisions. Thanks so much.