The Beer Hunter has been challenging himself to visit as many hire bike docking stations in a day as possible without incurring any charges. On Saturday, he told the Borisbikes forum, he managed 61 in eight hours, through an enterprising mix of jogging, cycling and orienteering.
We like this idea of docking-station challenges and will be watching with interest how the 'record' develops. We might even have a go ourselves.
It all sounds great fun - if the system works. Which hasn't been the experience of another poster to the Borisbikes forum, who claims they were incorrectly billed £30 for nine 'free' journeys.
Are these teething problems or gum disease? As they say, only time will tell. And as my mum would say, well in that case give time a couple of beers or something, and get it to tell us now.