lol. That would be really fitting.
Maybe an item could be given when you get the event? How about a black cat squishy? Or, if we need it, "good luck" charms? Such as a horse shoe, four-leaf clover, ect.
The event could say "Oh no! It looks like a black cat crossed your path/you've walked under a ladder/ you spilled some salt/ you broke a mirror! (Clumsy!)! Here, take this to increase your luck!"
lol.