Derailers one hundred percent pure fool

Well, I'm one hundred percent
Not ninety nine and nine tenths, hundred percent pure fool
I wasn't very good at fractions back in school
But I know what I am, I'm one hundred percent pure fool
I guess I wasn't thinking, guess I lost my head
I stayed out a drinking while you were home in bed
You were making coffee when I came stumbling in
And it's painfully clear I've been a perfect fool again
Yes, I'm one hundred percent
Strung out honky tonkin', a foolish man it seems
Leaving you at home dear alone with just your dreams
Now you could take me back and forgive me if you can
But I won't blame you for leaving 'cause you know just what I am
Yes, I'm one hundred percent
Well, I know what I am, I'm one hundred percent pure fool