First Mention: Harry Barker and the Chatroom of Enigmas (December 10, 2010)
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In Sharon's dream world of Harry Barker, Argyle Fisk is the caretaker of Hollerith's Castle at Hollerith's School of Phreaking and Hacking. (This is opposed to Dexter Smith, who serves as the school's groundskeeper.) Fisk has yet to been seen in any of the Harry Barker stories, but has been mentioned once or twice. It has been implied that he is a most unpleasant man who delights in seeing students get into trouble, so long as they are given sufficiently cruel and unusual punishment. He has a pet cat, Mrs. Slowlaris, who has a particular knack for catching students in the act of mischief and ensuring that the faculty becomes aware of it. Fisk confiscated the Hooligan's Hash from a student sometime in the past, but the device was subsequently filched by Fred and Barney Measly, who eventually gave it to Harry in his third year at Hollerith's.
Fisk is the analog of Argus Filch from Harry Potter. His name is derived from the fsck Linux command, although it could be argued to be also related to this Jargon File entry. Mrs. Slowlaris gets her name from this Jargon File entry and is the analog of Filch's cat, Mrs. Norris.