i suggest you read 'bartleby the scrivener' by herman melville[1]. bartleby is most famous for the scene(s) where he tells his manager 'i'd prefer not to' when asked to do basic parts of his job. the full short story is much richer than its most cited line, however, and it could be helpful for your situation. bartleby works hard at first, but then starts acting more and more eccentric, eventually sleeping overnight at his workplace. his manager is the narrator and the slow transition of his perception of bartleby is fantastically done by melville.

also in this vein, somethingawful had an ancient story about a guy who got reorg'd into a position of no responsibility that was pretty great. i can only seem to find the third installment[2] of the series, though. like bartleby, he begins by doing good work for a while. but where bartleby's abdication of duty is intentional, driven by something like a depressive episode, somethingawful-guy's company slowly just stops asking him to do things as waves of reorgs and mergers leave him 'on the heap, but without any references' as it were. the zany antics of avoiding his hr dept are quite fun and i think the whole thing should be dramatized.

[1] https://www.owleyes.org/text/bartleby-scrivener/read/bartleb... [2] https://forums.somethingawful.com/showthread.php?threadid=26...