There is something odd about being on a bus, being loaded in close proximity with people whose only common goal with you might be your destination. People come from all different socioeconomic statuses and racial backgrounds.
That being said, bus drivers must interact with people who have just been relieved from a tough day at work, can only barely afford the fare, or perhaps have had a falling-out of their relationship. I have met bus drivers who have been verbally abused, or even attacked on the bus.
I would like to say to 90% of the bus drivers out there, thank you for returning a smile, thank you for stopping for me when I was careless and at the stop in time, thank you for helping me to figure out where I am going, and thank you for being friendly every morning at 6am when I caught the bus to go to work in the summer. Thank you for all of the hard work you do, and thank you for remembering who I am even when you see countless faces in a day. —Student who busses every day