Mexicans love mayonnaise. They ordered a huge shipment and a ship sailed from Europe with a full shipment of Mayonnaise. As it was crossing the Bermuda Triangle, it mysteriously began sinking. The captain wired the shipping company in Europe, "we have run into a serious problem in the Bermuda Triangle, and ship is sinking". The captain was not good in Spanish, so he wired port authorities in Mexico, "Sinko De Mayo". Later on it was changed to Cinco de Mayo!