There can be few things more depressing than waiting on a street corner in the pouring rain for a black cab, so most of us would welcome the introduction of more reputable private hire taxi companies with open arms. But, of course, black cabbies don’t see it in quite the same light – more choice might be good for the consumer, but it makes it much harder for them to make a decent living. That’s their view, anyway. One thing is for certain, they aren’t going to make life easy for any competitors. Taxi app company Hailo, which has just opened its service up to private hire vehicles having previously only operated on behalf of black cabs, has just seen its London office vandalised and the word ‘scab’ daubed on its walls.