Instead of trying to con Londoners into believing that Tube chiefs can either break the strike or damp down its impact, the mayor and his officials should be focusing their efforts on reaching a negotiated settlement to a dispute which is about maintaining safe staffing levels, quality of service and access for all.
RMT is once again appalled that TfL are trying to fool the public into believing that volunteer 'ambassadors' can run a safe service as an alternative to experienced and highly trained Tube staff.
That is dangerous and provocative nonsense with potentially lethal implications and the union will be alerting Tube safety authorities of our serious concerns over this cavalier disregard for normal safety rules.
The confrontation came during the Mayor's monthly phone-in show on LBC 97.3 - thought to be only the second time the two men have spoken.
The dispute over ticket office closures was deadlocked tonight with millions of commuters almost certain to be caught in the crossfire.
London Underground says services will be affected from around 9:30pm on Tuesday 4 February.