sgarecfinders | Dark/Sociopathic Sheppard/McKay fics? (Reply)

I recently read the AUs "Crimes Against Humanity" by seperis and "Not the Fine Man You Take Me For" by sardonicsmiley, which both feature dark, sociopathic John and Rodney. (In "Crimes" John is a black ops trained killer and Rodney destroyed 5/6th of a populated galaxy basically just because he could. In "Not the Fine Man" Rodney will do anything for John.)

I loved these stories so, so much, with their dark takes on the characters.

My question is, are there any more stories out there that are along the same lines as these? I'd appreciate recs for any McKay/Sheppard fics (though I'll read pretty much any slash pairing) wherein either McKay or Sheppard or both are dark, sociopathic, morally bankrupt, or even a bit insane.

Thanks so much!

Thanks for all the responses to my request - I really appreciate it! (As a sidenote, I am so, so sorry for screwing up on the tag thing - total failure on my part; many thanks to whoever fixed it for me.)