If there is room to pass on the right I always stick my head out of the door and look back when I am exiting a public bus. I am have seen cyclists nearly hit exiting passengers too many times not to. That is also why I never pass a public transit vehicle pulling up to or at a bus stop. I will never pass a school bus that has its lights flashing. If it's just stopped I will proceed with extreme caution. I don't want to hurt anyone, including myself.