Flat Tire

I’m not sure where I picked up that old nail.
All I know is that my once-smooth journey
Was interrupted by a loud ka-POW as
The steering wheel jerked itself violently
Out of my hands. Now here I am, sitting
By the side of the highway, watching others
Pass me by. I’m as flat as an old tire, and
I know I’ll need more than a quick patch job
And a few strokes of a bicycle pump
To get me back up and rolling again.