How long have you got?
He based his decision to back Brexit on whether it would make him Prime Minister rather than whether he believed in it...and look at the shitshow that caused.
He was a rotten Mayor of London..spending hundreds of thousands of pounds on vanity projects that never amounted to anything (water cannon, garden bridge etc).
He's a serial philanderer, leaving scores of mistresses/abortions in his wake and finally leaving his wife of 20 years, who was being treated for cancer for his latest squeeze because he'd knocked her up.
He was a disastrous Foreign secretary, almost certainly causing the sentence of Nazanin Zaghairi-Ratcliffe to be lengthened.
He's been climbing up Donald Trump's arse for the last four years (and look how well that turned out).
When we were first warned about Covid he didn't bother to turn up to the first few Cobra meetings because he was sorting out his divorce. Because he doesn't want to deliver bad news he's been late on every single response to Covid.
He conspired with a friend of his who wanted a journalist beaten up,
As Eddie Mair said...he's a nasty piece of work.