I think the comment was more that the interview doesn't stop when you leave the office...

I was joking mainly but it also sounded like a potential good story!

British Intelligence has bars inside their offices. In fact the British security services are basically an oxbridge drinking society.

I’m reminded of http://home.xnet.com/~warinner/pizzacites.html where a spike in pizza delivery at the Pentagon would foretell major events.

Are the pubs meant to train new operatives to avoid awkward situations like this? https://www.google.com/amp/s/screenrant.com/inglourious-bast...

My brother was in the USMC and was a bit jealous that the Australian Navy guys had pubs on their ships.

Probably they are thinking of the cop bar likely around the corner from whichever building the interview happens at.

But in my experience job interviews can also be successfully concluded in similar places on occasion, although perhaps more often started.