 Dinwiddie expected that the Bursarship would be a relatively safe office to hold (considering that the normal means of obtaining an office in UU at the time was to assassinate the previous incumbent, but nobody else actually wanted to be bursar) and dreamed of spending the rest of his life quietly adding up rows of figures.Unfortunately, shortly after he became the Bursar, Mustrum Ridcully was appointed Archchancellor.The brashness of Ridcully's personality wore away at the Bursar, a man whose idea of excitement was a soft-boiled egg, and throughout the books his sanity decreased until, by the middle of the series Dr. Dinwiddie is almost completely insane.