Responding to my father's question

I've described it as
"A silence as white
As hospital clouds."
I've tended to think
Of it as akin to
Occupying space,
Which is not like
Taking up space,
Which implies volition.
As you know,
I sat on a bench
In the mall, while
My friends were passing
Time in class.
High & thus utterly
Imprecise. Moments
Before I sat on the bench,
I had leafed through
The several copies of
The latest issue of Details
At the magazine kiosk
Because Dale had tipped
Us that there was an insert
In it that you could rip
From its perforation
& redeem anywhere 
For a free pack of
True cigarettes.
I unperfed six of them
& redeemed them
Immediately. I con-
Sidered this a non-
Trivial event. I
Destroyed this task.
How many ways
Can I tell you I
Killed time? You'd
Cringe to hear even
One story, its
Trace still
Tracking down
My spine,
Even now, twenty
Years later, like
Still doves. 

Copyright Credit: Nick Twemlow, "Responding to my father’s question" from Attributed to the Harrow Painter.  Copyright © 2017 by Nick Twemlow.  Reprinted by permission of University of Iowa Press.
Source: Attributed to the Harrow Painter (2017)