Here's an interesting tidbit from Anthony Everitt's fine bio, Augustus: The Life of Rome's First Emperor. It concerns Augustus on his deathbed, after a long reign filled with accomplishment but also crowded with bloody strife.
Just before he died, his wits seemed to wander, for he suddenly cried out in terror: "Forty young men are carrying me off!" [p. 314]
Considering the many cruelties Augustus inflicted on other people throughout his life, especially in his early years, one has to wonder if his wits had really wandered ... or if, in fact, he was seeing his immediate future quite clearly.