Reminds me of the episode of 'Fools 'n 'orses'... when Del boy and Rodney appear out of the mist dressed as Batman and Robin....and save the day !
Boris Johnson .... knight on shining bicycle.. just as laughable !!!
The way I read it, he picked up the iron bar and went after the girls - presumably to return it to the one who had dropped it. If the police ask me I will say I was there and saw it all! Can someone tell me exactly where it took place so I get my story right when called upon?