Tweets like this, when viewed as part of a much bigger picture, are a direct threat to the idea that your job should be as safe as possible, that your time spent at work shouldn't make you weep blood and that you should get a fair wage for a fair day's work. TfL aren't just throwing shade at the RMT, they're throwing it at all of us.
What events like the Royal Wedding, the London Olympics and Wimbledon show are that, deep down, we are in fact amongst that most genuine and charming people out there. Give us a bottle of Pimms and we'll stumble and knock over our metaphorical walls. Give us a bit of sun as a remedy to our coldness, and our solar-powered souls are reinvigorated.
Last week Transport for London held out the prospect of the Underground running later at weekends. Commencing in 2015, this could deliver a boost to London's £8 billion a year dining, drinking and entertainment industry. It would provide a boon to the thousands of Londoners who flock to the West End for a night out.