Why not slow down and be little bit more patient and curteous. And not, it's not because you're on a bike.. I ride one too, but in conditions like this you have to make allowances. People make mistakes. Sure, if it's intentional then it's different but you still have to drive/ride/walk in accordance with the conditions not your presonal goals.
Taxis don't have an MOT. They have a different test which does not show up on DVLA.