Bane

For some reason I only hear people talk about "the bane of their respective existences."  But there are so many cool meanings to bane.  It is not only a bad guy in Batman! It also means death, ruin or poison.  So basically: bad things.  And you could refer to it as "bane of the tyrant" or "bane of my day."  Not everything has to circumvent your existence.  Cocky sunovabitch.