Ever the equal opportunity offender, Boris has evened up his dig at Uber by antagonising black cab drivers. He told a hostile audience of cabbies in the London Assembly public gallery:

“You are dealing with a huge economic force which is consumer choice and the taxi trade needs to recognise that. Everywhere I go I see yellow lights and I can see the taxi trade is dying and it grieves me, but it is very, very difficult to fight a huge change in consumer preference.

[Heckler shouts that cabbies are being undercut.]

Yes they are. It’s called the free market… There’s a rail strike on Tuesday, you might get some fares.”

Yet rather than take advantage of the strike, cabbies are instead planning on spending the day protesting themselves…