The thing people need to know about Boris is that 99% of what you see in public is a carefuly crafted image of a harmless, and somewhat likeable buffoon.

If you listen to the recording of where he was talking with an acquaitance about supplying him with the address of a reporter for said acquaintance to "rough up" an entirely different man emerges, one who doesn't stammer and ham things up.

Boris is a very calculating man, and has fooled so many, for so long. This story paints this point very vividly.