For example, there's Bloody Stupid Johnson. The best/worst architect to ever exist.
Only Bloody Stupid Johnson could have invented the 13-inch foot and a triangle with three right angles in it. Only Bloody Stupid Johnson could have twisted common matter through dimensions it was not supposed to enter. And only Bloody Stupid Johnson could have done all this by accident.
Oh and Death.
Vimes: 'Is this it? This time I die?'
death: could be.
Vimes: 'Could be? What sort of answer is that?'
death: a very accurate one. you see, you are having a near death experience, which inescapably means that i must undergo a near vimes experience. don't mind me. carry on with whatever you were doing. i have a book.
And the aforementioned Vimes.
'Sam Vimes once arrested me for treason. And Sam Vimes once arrested a dragon. Sam Vimes stopped a war between nations by arresting two high commands. He's an arresting fellow, Sam Vimes. Sam Vimes killed a werewolf with his bare hands, and carries law with him like a lamp. Watchmen across half the continent will say that Sam Vimes is as straight as an arrow, can't be corrupted, won't be turned, never took a bribe.'
Don't break the law while Vimes is around.
“She'd become a governess. It was one of the few jobs a known lady could do. And she'd taken to it well. She'd sworn that if she did indeed ever find herself dancing on rooftops with chimney sweeps she'd beat herself to death with her own umbrella.”
― Hogfather