Man, I remember my Gilfoyle. We had an employee who would do one off programs for anyone with a use case - but ours wiped his computer before giving it back, so frequently we'd get tickets for software we'd never heard of that was somehow mission critical, and we'd have a few days to spin up a new version on the spot.

Probably some of the most fun I've ever had writing software was making Gilfoyle-2s.