Characters
Hey look, mister, we serve hard drinks in here for men who want to get drunk fast and we don’t need any characters around to give the joint atmosphere. Is that clear or do I have to slip you my left for a convincer?
— Nick ‧ It's a Wonderful Life

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker presents the bar as a place for strong drink and rapid intoxication, with no interest in colourful visitors supplying atmosphere. The warning ends in a threat of a punch. A blunt business description becomes a way to intimidate someone whose presence is unwelcome.
Context reviewed