Sex Lies and Videotape question

Hi everyone! New member!

I was wondering about the role of the bar customer in sex lie and videotape. The guy who is at the bar in al of the two bar scenes who keeps hitting on the bartender and her sister when she comes in.
If you could tell me anything about his role, it would be helpful. Whether he just depicted typical townlife (even though he said he was just passing through), brought humor, portrayed an aspect of the overall theme? Anything bc im having trouble realizing why he was there and had any speaking lines.

Thanks in advance!
 
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