Why does Holden in The Catcher in the Rye pretend to get shot?I need to anaylze why he "play-acts."

Holden Caulfield actually does this twice in the novel,
and the first time is just after Maurice and Sunny have left his hotel room after
returning to collect the extra $5 that Holden apparently "owes" them in Chapter
Fourteen. Having been punched in the stomach by Maurice, Holden imagines that he had
actually shot him in the stomach instead, and imagines what it would be like for him to
go after Maurice with a gun but also bleeding all over the
place:

I
pictured myself coming out of the goddam bathroom, dressed and all, with my automatic in
my pocket, and staggering around a little bit. Then I'd walk downstairs, instead of
using the elevator. I'd hold onto the banister and all, with this blood trickling out of
the side of my mouth a little at a time. What I'd do, I'd walk down a few
floors--holding onto my guts, blood leaking all over the place--and then I'd ring the
elevator bell.

We can see
from this elaborate picture the way in which Holden is obsessed by fiction rather than
reality, and indeed seems to dwell more in the world of fiction than the harsh and
boring world of reality that he is trying to escape by running away. Note what Holden
says to us after this elaborate scene:

readability="5">

The goddam movies. They can ruin you. I'm not
kidding.

He himself therefore
recognises the influence of the movies, one of the biggest champions of fiction, on his
life which suggests that his imagination combined with his penchant for lying
obsessively indicates that play acting for Holden is all about making his life seem more
interesting than it actually is.