Situation: I was the second car behind a school bus. The school bus stopped before the traffic lights and started flashing RED LIGHTS - a teenage girl was boarding. The school bus driver did not stick the Stop sign out. - anyway the warnings says do not pass when lights flashing.
The car right behind the school bus stopped for a second and then bypassed the school bus and drove to the left-turn lane - I thought he/she was going to make a left turn. Even though he/she should wait.
In fact this car merged back to the right lane and off the way! - I just waited behind the school bus. - Nobody else attempted to pass the school bus.