When fixing some one's post due to bad grammar, remember that your own posts will be highly scrutinized. For instance, sentence structure, syntax, spelling, punctuation, clarity, context, etc. Keeping in mind that the poster you are correcting might not care about their own form due to an understanding that few people can be bothered care, let alone capable of properly correcting the problem without making a fool of themselves. In the event that you just can not stop yourself fixing a petty issue in a topic that is unrelated, be sure that your own posts are the epitome of perfection.
For instance, this quote here...... should read as such.
To which I would reply, no thank you.
Sweet cheeks
You grazed him, he lies
panting on the floor. Staring at the night sky.
Wondering, whether the clouds start
or end
in his mind or in the mind of God. 
Yes, yes, yes. This the truth. 
He who told him off as a child 
has now returned
to tell him off as an adult. Now he cries 
and whimpers in the corner of your heart
imploring you to stop.
Papa, why must thou chastise me 
as your step-child when the blood of our forefathers
runs through my veins? 
Why must the tears of a chided child
be dried on the sleeve of wizard?
I hurt inside, the pain gathers like a raisin 
And it grows, and grows. Now to a fist sized
raisin. Eat from it Papa. Eat from the hate you grew
and nourished. Sweet cheeks.