I've very rarely had any bother with buses. They have several external cameras and the company name written all over them. Only an utter fool would try anything. I did have an altercation last year where a bus drove far too close. He refused to back off so I went slower and slower and then stopped. It never occurred to the driver to move over to the next lane and overtake.Buses can also be driven extremely badly, especially against cyclists. Bus only restrictions are useful for reducing the overall volume of traffic on a road, but I'd still want a separate cycle lane if there's room for it.