Life of a Knife

My job is to hurt people
For some to take away pain
Every time im used I get a taste in my mouth
I do not like my job but there is nothing I can do
She uses me so much in one day
I wish I could take all her pain away
She used me on her brother to try and keep him away
And then she used me for the last time
I went so deep into her flesh
The next thing I know the life drain out of her