Narrative of opening of Clerks

http://www.mediaknowall.com/alevkeyconcepts/narrative.html

When we watched clerks we saw that the equilibrium of the narrative is that it is Dante day off. We assume he has been drinking and is hungover because he appears to have been sleeping in the closet. The disturbance is the phone ringing, this is a popular choice in films. The phone call is from his boss asking him to work, this means he could not play hockey.
We then see Dante opening up the shop and he is not happy about being there.

http://www.filmeducation.org/secondary/concept/film-narr/docs/narr3.html