Short Stories with Tragic Endings

I am in a similar building but this time the walls and floor are a shiny smooth
tan color. I am dressed up for something ( white button down shirt and black
dress-pants, no tie ) I leave the building from an exit in the room and come to
a parking lot. It is midday and sunny and everything has that golden sunbathed
color. I go over to the lot across the street. I am sweating profusely so I take off
my shirt. For some reason unknown to me I threw it in the back of 90's looking
dark green car. I went into a building at the other end of the lot and found it to
be some sort of changing room. I put on a cooler shirt and splashed water on my
face from the sink. I then exited the building intending to go get my white shirt.
I find the car, it is still there but there is a person in it. He has the appearance of
a person I know in real life but this is not that person. I come to the window and
explain that I left my shirt in the back of his car and ask if I could please have it.
He says "sure". He reaches over but instead of pulling out a shirt, he pulls a out
an assault rifle and holds the barrel to my chest. I then notice the car is filled with
a myriad of different firearms that I swear were not there before. I tell him that
I don't want any trouble and he tells me to leave. I, naturally, complied. I go back
into the first building and I remember thinking what I'm going to do without a
formal shirt. After this thought, the dream ended.