I see that one of my world's wives' tales has been told to you - the one about sneezing. However, I've got another to add to your list!

It involves the number 4. Here, it's considered an unlucky number. Inns and hospitals often exclude room numbers with many fours, or the fourth floor of the building.

I hope this information has been of assistance in your search for otherworldly knowledge! If you'd like more, I'm sure I could find some!