I should of carried on and walked away
and never stayed for that drink.
Never laughed at your jokes
and slapped that smile from your face.
I should of been a better person, listened to my brain,
and stayed well away till I caught that train.
I should of never answered your lying smile,
it was a simple task.

maria goodison

http://www.poemhunter.com/poem/walked-away-8/