I can't imagine going around a stopped school bus on my bike. But on the road we live off of there are a batch of families that drive their kid to the end of the driveway and the kid doesn't get out of the car until the bus is good and stopped. Then they have to find their books, ipod, telephone, coat, hug their parents, say goodbye to the dog, and then it takes a few seconds to figure out they have to get out of the car. They probably wonder why people are so desperate to pass the bus. I pass a city bus fairly regularly on my commute. But I go straight at the end of the block and they turn left.