"Last drinks" is the call by a barkeep to indicate that it's almost closing time, and patrons should order their last drink for the evening. It can be adopted into many styles of game as a mechanism for converting a pleasant evening in a tavern into a bar room brawl if, against all reason, one has not yet broken out. If the call of "last drinks" itself does not set off the hair-trigger for the inevitable brawl, simply have the barkeep state that there are only enough drinks left for half the people in the bar.
Transcript
Lando: You know, all the droids and systems have been playing up for the past hour. Like this door being locked.
{Lando grabs microphone}
Lando: This is Lando Calrissian. The Empire has taken the city. Our droids have been compromised.
Lando: I advise everyone it's last drinks before more Imperial troops arrive.
PA System:
Lando: In other words, get drunk or get out.
PA System:
{beat}
Lando: Wait. Why isn't that coming over the PA system?
PA System: Good evening. This is your Variant Reader speaking.