I love the last paragraph "Mr Marshall will not reveal the route in order to protect the record. But it began at 5.29am in Amersham on the Metropolitan line and ended at 12.05am at Upminster on the District line. Ironically, after their mission they missed the last Tube home and had to take a mini-cab."
Well done Messers Marshall and Blake - you'll be on Newsnight next.
Not quite Newsnight but Geoff is going to be on the radio later not once, but twice - LBC at 6.20pm and BBC London at 6.40pm. Both have live streams. Wot a media whore.