Probably, Ian, as an extravert, you seek contact with others while sipping a pint at a beer festival, while the others first sought contact with the pint, and then another, and another, before staggering away claiming the world IS round, as they can see it rotating around them.
They do say Columbus discovered the world is round after leaving an Irish pub, and that instead of sailing back to Spain, he sped off in the wrong direction and hit America!
Some claimed it was the pixies, but then pixies have always been the Irish excuse when rolling home
