* The One Month Prologue, and the death of John Dearheart.
* The fates of the four previous postmasters:
** Mr Mutable falls five stories 'smack, sir, ''smack'' on to the marble' head first, and splashes,
** Mr Sideburn drops through the ghost of a staircase and falls down five flights of stairs, breaking just about every bone in his body in the process,
** Mr Ignavia dies from a heart attack that, we later learn, was caused by walking through a ''human'' ghost and seeing everything inside them as he did it,
** And as for poor Dark Clerk Whobblebury, who fell onto the "Bloody Stupid" Johnson-designed Sorting Engine...'' 'His head was all over the wall!' ''
* Mr Gryle is walking NightmareFuel. The wild banshee is ''not'' PlayedForLaughs and unnerves even Gilt's dedicated Igor, who has worked with werewolves and vampires before.
* The clacksmen's tendency to think they can fly, and learn otherwise.
* InUniverse, even, at least in the Sky 1 movie. After Pump tells him that "When banks lose money, it is not the banker who starves," Moist has a nightmare about the guy whose money he swindled [[DrivenToSuicide hanging himself.]]