If you turn up at this time of night
everyone behind the bar will think you're a dick and wish you hadn't bothered.
( CowJam, Fri 10 Jun 2011, 23:33, archived)

why?

(Mortal Wombat - he's just an excitable boy, Fri 10 Jun 2011, 23:36, archived)

Because this time of night is for people who have been in the pub most of the evening.
Staff will be starting to wind down.
( CowJam, Sat 11 Jun 2011, 0:10, archived)