[wideawake]

he was grilled during an informal surgery in a bar

?

[rarestia]

As your name suggests, I too am wide awake and cannot for the life of me figure out when the word surgery became synonymous with meeting.

[USFRIENDINVICTORIA]

The Brits call politician’s constituency offices “surgeries”. (But, what do they know about speaking English?)

[Scotsman will be Free]

That means that the surgeons wore blue jeans, and t-shirts while operating on Joe, were having beer while doing so, and had Joe’s butt on the grill, cooking, all at the same time.
It’s known as multi-tasking. Hope that cleared things up for ya.

[Grizzled Bear]

A surgeon and his patient walk into a bar...