It's 8pm on a Thursday night and on the ninth floor of 207 Old Street, the Jaeger bombs have just started to drop. This 'Street to Peak' fixture is one of kind, held in the clouds at one of London's newest tech spaces to exhibit several successful outdoors startups.
This latest episode in the air pollution debate signifies how politically toxic accusations against the Mayor's air pollution policies have become. Clearly, if you dare to question the Mayor's commitment to the issue you might find yourself on the receiving end of an angry letter and veiled threats...
Howlers are not just mistakes but deliberate omissions. The book is a jolly read and the voice of Boris is on every page submerging the words of Churchill. For Boris fans it is a must-read. But next time, might he employ a research assistant to check facts and ask why the great author why key events are left out?
At the moment, Boris can lap up the glory when taking to the stage at media events, but if he does have ambitions of not only leading his party but also the country, he will have to comment precisely on where he stands on every part of party policy. He knows this though - and he is more than ready.
A Mayor who has shown acquiescence towards health inequalities, a cost driven reorganisation of the NHS, and a funding cut dressed as a funding freeze. We should be stopping these knee jerk and flawed A&E closures and planning strategically in London. A crisis in the NHS isn't looming, it's here right now.
It was another Conservative prime minister, Harold Macmillian, who explained in just five short words how governments can crumble with such spectacular suddenness: Events, my dear boy, events.
Politicians must begin to move away from this mould and persuade us to get behind them as people. They need to put the passion and personality back into politics.
Shouldn't we be sorting out London's traffic by expanding the bus network, building more cycle lanes and financing it from a pay as you go driving scheme? I'm no expert, but it makes much more sense than what I'm hearing from people who want new roads and more pollution...
If Johnson does become a genuine leadership candidate, it'll cap quite a journey for the old Etonian. The buffoonery has toned down, but without morphing into the type of hackneyed politician that people despise.
Opening the London papers on the commute home, the almost daily stories about the housing crisis facing London make for ever more gloomy reading. Housing is becoming too expensive for all but the richest Londoners with tenants in the private sector spending 59 per cent of their wages on rent.
Despite London's housing crisis being one of the black marks on Boris Johnson's mayoral legacy, the key to making housing in our capital more affordable is straightforward and widely agreed - to increase supply and ensure this supply is genuinely affordable to your average person.
Up North the Scottish independence referendum is hitting the final straight, with postal voters already casting their decisions. What should in all likelihood have been a 16 percentage point win for the No side looks a lot less certain now.
With just months to go before the general election, all mainstream parties need to understand that having policy is only the first step on the path to victory. It then falls into the hands of party spinners to decide how policy is communicated, articulated and portrayed through the party ranks and into the media that will determine how the public perceives it.
Given his undoubted charisma and his way with words, he has the potential to be a big vote winner for the Tories. But, and it is in important but, voters who regard humour and a cavalier style as an asset in a city mayor with few real powers might seek different qualities in a national leader. Last week, in an interview with the Sunday Times, he talked about how his six years as mayor had given him the administrative experience that would stand him in good stead in national politics. He has a point. But if he is to be a real vote-winner for his party on the national stage, he needs more. He needs to get serious.
Should Boris win a safe seat, should the Tories win the next election and should Boris be gifted a Cabinet position - the first is the least dangerous of these three assumptions - will Boris commit, even for reasons of his own, to his Cabinet chums and will they commit to him? Boris has work to do. His recent cajoling of Cameron to take a harder-line stance on future negotiations with the EU can legitimately be viewed as the voice of a critical friend. Cameron can take it. However, covert criticism of Osborne, one of the more obvious contenders to succeed Cameron, will endear him neither to the Chancellor nor to others in Cameron's circle of less secure consiglieri.
How like Boris to use a much-trailed speech on Europe as a sort of summer panto, a bit of harmless fun, the brass band preceding his big announcement about his own ambitions here in the UK.