Algernon is a tubby customer at Feldepost's Inn in Beregost. He can be found upstairs in an expensive room. Algernon is the owner of a nymph cloak, which can be pick-pocketed from him or collected from his corpse, should he be killed.
You can use Charm spells on Algernon then direct him to attack your summons, watch the summons do the dirty deed without the hit to reputation! (Note not all summons react to friendly attack)