One of these:

Getting hacked and losing all my relics, glamour, and the FC I own. (100% success rate)

Further destruction of an already dumbed down card system for Astrologian. If this happens, I'll move on to Summoner+Scholar or White Mage, and if the expansion's additions to those jobs fail to entertain me, I doubt I'll stay. (50% success rate)

Scandal on the server. (42% success rate)