Satan rolled his eyes. "Self-pity is an unattractive quality, Sloth. Don't say I never did you any favors."
With that, he leaned forward and sliced open Sloth's throat, a quick, clean cut that resulted in a spray of arterial blood across the ceiling.
Once Sloth had gone cold, Satan cut the ropes binding him and picked up Sloth's corpse. Within seconds, he had transported them both to Sloth's apartment. He laid Sloth's body on the couch before dusting his hands off and reappearing in his penthouse.
Job well done. Now he just had to decide what to do with those severed fingers...