Not strictly commuting, as a group of us were on early season training some years ago. Bus passes us, wide, then as the road curves right, he keeps straight on. We can SEE the driver looking in the nearside mirror, so he knows what's happening. Anyway we are all squeezed and lots of shouting, etc. Bus goes on. But, buses stop....
What the driver didn't know was that a sprinter in our group has a short fuse, and so he jumps off the bike, climbs the ltlle steps at the side of the bus, slides open the drivers door and expresses his opinion. Driver suggests he goes away, or something like that. Mistake. Solid whack on nose, blood, back on the bikes and off we go. Never any comeback, don't think the driver could see for the tears for quite a while.
This is not a recommended course of action, but our man's view was, why hit the vehicle when the driver's available?
Oh, how in those dim and distant days of the past, we laughed...
Milder one, having been cut off, come up alongside the L plate bearing car in traffic, warm day, windows open. Say to driver "are you the learner?" "no". "then stop driving like one".