Hi all. Been working on a horror (for lack of a better "genre") story. In the story I'm laying some background info on one of the main characters, a miner in the 1860's. While on one of his infrequent visits to town, he makes a visit to the saloon and pays for some time with his favorite girl. The background I'm trying to lay is his cruelty, selfishness and coldness while in the private room with her. I wrote the scene and quite honestly it left me quite frazzled and I've had a hard time trying to edit that portion without getting a queasy feeling in my stomach. My question is this, when writing a violent scene, what is the best way to remove any personal feelings and keep everything subjective as you write?