Insiders say....
"Everything just continued as normal. social distancing didn't happen. We didn't wear face masks. It wasn't like the outside world."
Another even describes the events as a "lifeline" for staff who were working long hours, especially if they lived alone.
But all three point to the culture set by the prime minister himself, suggesting he "wanted to be liked" and for staff to be able to "let their hair down".
One suggests they felt like they had the prime minister's permission to socialise even it meant breaking the rules because "He was there."
"He may have just been popping through on the way to his flat because that's what would happen," they add. "You know, he wasn't there saying this shouldn't be happening.
"He wasn't saying, 'Can everyone break up and go home? Can everyone socially distance? Can everyone put masks on?'
"No, he wasn't telling anybody that. He was grabbing a glass for himself."
I wonder what supporters of BJ would answer to all of that?
As I have said before... the fish rots from the head down. This proves it categorically.