R.
755 Words 
Dean centric with OMC, Dean/Sam (implied)
Warnings: Slash themes, serial killer tendencies.
Notes: For spn_30snapshots, prompt blood. A kind of prequel to What You Do Best.

Summary: See, Dean likes girls and guns- so taking a knife to a guy is a little out of his element. But, he'll do it anyway, 'cause he's gotta teach Sam a lesson after all.

***

( Stop it, Now )