Sadly to anyone with experience of London Cabbie vs bike incidents, this story has the ring of truth.
I have been deliberately driven at, pushed out of the way, carved up and threatened with violence for daring to use the advance stop line at some traffic lights.
I'm not saying all cabbies are nutters (nor are all cyclists saints..) but there are enough odd ones around to make me inclined to believe this tale.
Mind you, if I spent all day in London traffic I'm not sure I wouldn't be moved to some strange behaviours...
Liam