If it's a police-calling incident, fair enough. It does sound upthread like people are suggesting it as revenge of sorts, which I think is a really bad idea.
The last time I stopped a bus, one of the passengers was very visibly shaken by what the bus driver had done to us.
The incident was horrible. On approach to a stop line at a set of red traffic light the bus driver drove right up behind us and then, as we were slowing down anyway, drew along side us and tried to squish us into the kerb. I was told Maffie to move out of the buses way, stay calm and just let the bus go when the lights changed.
When the driver opened the doors and started swearing at us and telling us we had no right to be on the road, as if a switch were flicked I jumped on the bus and waited for him to stop ranting before calmly trying to explain that, no matter what he thought about the way we were cycling, driving like that was incredibly dangerous and not an appropriate way of dealing with it.
He shut the doors on my bike and wouldn't open them so I could get back off. So I turned the bus off.
He called the police, so we waited calmly for them to turn up. As we did so, he walked up and down the bus trying to coerce the passengers into supporting his account of events. In this time, Maffie opened the doors for me from outside. The shaken passenger alighted to ask Maffie if she was okay and explain that she was really upset by what she had seen.
After calmly explaining what had happened to the anti-cycling police officer, he (much to my relief) gave me a stern ticking off for interfering with a vehicle and told me that if I wished to complain to the bus company I should contact them with the fleet number of the vehicle. In fact the officer marched me around the back of the bus to get the fleet number.
I don't condone this sort of behaviour and in many respects I regret it. It wasn't the right thing to do. It did not change the bus drivers attitude. The police felt I should pursue the matter of dangerous driving privately.
I was staying really calm until those doors opened and the driver started spouting abuse. For a while afterwards I was angry with myself for rising to it. I also think the bus driver got a sick sense of enjoyment out of the whole saga.
As others have said, staying calm means the perpertrators of the crap driving are much more likely to die young of a heart attack rather than you.