Superstition is defined by Merriam-Webster as “a belief or practice resulting from ignorance, fear of the unknown, trust in magic or chance, or a false conception of causation”. I don’t personally know anyone that would adhere to superstition if they were doing so based on this definition! However, I have dealt with many buyers and sellers who say they are “superstitious”. They may not want to close on a particular day; they may want to include or exclude specific numbers or number sequences from their offers or sale prices; they may not want to arrange for movers until a closing date is scheduled; or they may just not feel “right” about the other party they are transacting with!