Expounding the theory while sitting on the tube is a good place to consider at it, as two young actors argue for and against in an echo of Dudley Moore and Peter Cooke in their dead pan hilarious conversation, one of a series sketches in “End of the Line,*” in a set that neatly replicates a tube carriage. No less loopy – but equally funny – was the young man who had a problem looking at his feet, and the strategies he adopted to keep them – if that’s not straining a cliché a little far – at arms length.

Not all the incidents were funny; the rat pleading with the late-night traveller not to jump onto the line, and the sweet/disturbing conversation between the man and the woman he picked up were just as engaging and absorbing although at a more sombre level.

More vivid, but oddly funny – not really pc to laugh at this, but we did – was about the man who courteously offered his seat to woman with a baby (alright so far) so he could stand up very close behind a strap-hanging tipsy girl and try furtively to molest her. Good deeds have unexpected consequences.

The racist sketch, where on officious inspector let loose her poison views on a black woman who couldn’t produce an ID was less successful. Powerful stuff, and like every story, well- acted, but sadly we know about this already, and setting this incident some time in the near future didn’t seem relevant. It didn’t offer any insights; some white officials are loathsomely racist now, and will be in the future.. – Fabian Acker

*End of the line: Tales on the Tube – until 25th August at The Roadtrip Bar, Old Street