"Trigger Warning"--a verse and artwork

haikujaguar said that if she ever got a tattoo, it would look like this, which prompted me to write this little verse:

Trigger Warning

You are the warning
And I am the gun
They’re the shell casings
Numbers 3, 2 & 1
He’s the blackpowder
Awaiting the spark
Now where is the finger
To light up the dark?