No. I find that, as a class, bus drivers are among the most professional and courteous of all on the road. There is some natural conflict between bicyclists and buses because both share the right side of the road, but it's easily manageable.

BTW- it helps to plan and avoid surprises if you learn where the bus stops are along your regular bike routes. Also, one of the biggest hazards is cyclists filtering on the right when traffic slows. It's easy enough to avoid if you simply don't pass buses on the right.