My cart horse was a hindrance
Toiling slowly up ahead
Plodding unproductively
From break of day till bed

Forming rutted furrows
On a well worn clichéd track
So I unhitched him from out in front
And tied him to the back

If he could not lead quicker
When my mind was in a rush
My view ahead was slicker
When I made the bugger push

And better still when off the track
This cumbersome caboose
It flew with nought to hold me back
I’d let the horse go loose.

Danny Reynolds

http://www.poemhunter.com/poem/strong-028-free-rein-for-a-frosted-foal-strong/