Taxi Drivers

I'm noticing a similar theme running through my posts this evening... general annoyance in the car. Anyway, taxi drivers. Bad enough that they suddenly brake and indicate and pull up onto the kerb. You can't blame them if the twat in the passenger seat suddenly said, stop here please. What annoys me so, is when you're driving along, you see a taxi parked on the side of the road, not even with his flashers on, and all of a sudden he's pulled out in front of you, no warning whatsoever! What is that all about?! You think with them being on the roads everyday, they might know the rules of their place of work! Where is the traffic corps when you need it?