Scene: Mrs cb in a taxi on Oswald Road
Taxi driver (irately, motioning to car in front): What's the point in buying a 4x4 if you're going to drive around at 27mph?
Mrs cb: It's a twenty mph speed limit.
Taxi driver: What?! No it's not, when did it become 20.
Mrs cb: Several months ago.
Taxi driver: Well, no one wants to hire a taxi and be driven around at 27 mph.
Mrs cb: I didn't realise there was a different speed limit for taxis.
Taxi driver (throwing his hands up): Look, forget it alright!
Taxi then proceeds at 20mph along the next 30mph road to 'make a point'.
...
Mrs cb told it better than that; the actual exchange was longer.
...And he was on his phone at one point of the journey.