Augusto Bianchi, one of my former bosses, was a very wealthy Milanese business lawyer and in the 80s he missed a flight that ended up crashing.
The day he missed the flight was a Thursday and he was so grateful with the destiny for the incredible struck of good luck that he decided to give a party at his legendary Corso Venezia mansion in Milan for every Thursday of the rest of his life.
He kept his promise and his parties, called “Il Giovedí” (Thursday in Italian) became a sort of small cultural phenomenon in Milan (I just found that they are also mentioned on his Wikipedia page:) and they won a Milanese Municipal Award in 2012.
He even founded a “Il Giovedí” Book Prize to encourage and promote the books of young Italian writers.
Sadly, he prematurely died of cancer on October 2014.