Former client of the PC Ring in the Toronto Testbed. Sort of.
Mr. Glebb had extremely vivid dreams of being stalked by a bloody-handed giant version of himself, and sought protection. The money offered was sufficient to induce Zash to guard him for a while. When an apparent twin of Glebb's broke into Glebb's apartment and attacked him with a greataxe crudely made from an uprooted street sign, however, said twin proved strong enough that Zash would have had to go fully demonic to defeat him. Zash opted to let the assailant kill Glebb, whose corpse immediately disintegrated into sticks and leaves.
The twin offered to make coffee for Zash if he'd discuss the price of secrecy. Being anyway disinclined to explain his failure, Zash agreed. former idea makes me feel icky, even if it is inspired by GM's suggestion combined with running gag from BtVS about Xander and Anya