Actually I think it’s perfectly possible for the PM to not know
( on the night of 18th Dec) that there would be drinks etc for the staff if he wasn’t there.It’s not a nine to five job there, there are lots of staff and lots of rooms.
As I said earlier, if he did know about it or gave it his blessing then that’s another matter.
It’s not a question of lack of critical thinking ....it’s simply a possibility that the staff decided they were going to have drinks together that night.
If he has lied about knowing then it will come out, there are no end of leaks, but hating Johnson and wanting him to have to resign ( just because you want it) isn’t critical thinking either.
Do you have any favourite relaxing TV series or films?
... it was me who challenged the idea. And I'm not a Conservative voter...