"@ Dave, I've got some cut railings on my road - and I'm in NW5, not East London where bike crime is far worse. In the worst case scenario a well placed kick can break a railing - some of them are very old and brittle. They really are a 'false friend'. If you don't trust me here's a quote from the Standard:
Such railings - at traffic lights, around squares, in front of old houses - may be loved by cyclists but offer a totally false sense of security. "Wrought-iron railings can be very easily cut," says Sergeant David Prashner, of the City of London Police's cycle squad. (Or, indeed, broken with a single hammer blow.) "You need to fix your bike to something more solid."
Come on Kitt, you were always pretty sarky in knightrider I seem to remember!"