If one walks underneath an open ladder it is said to bring bad luck. Sometimes it is said that this can be undone by immediately walking backwards back underneath the ladder.
105
Once a wedding ring has been placed on the finger, it is considered bad luck to remove it.
117
Placing keys on a table is considered unlucky. (Sweden)
3
According to an age old custom, carrying a dead shrew in your pocket wards off rheumatism!
24
Placing a hat on the bed is, apparently, bad luck. (South Carolina)
9
The superstitious symbolism of a black cat crossing one's path is dependent upon culture: some cultures consider this a sign of impending bad luck, while some cultures consider this a sign of impending good luck.
75
Pirates believed that piercing the ears with such precious metals as silver and gold improved one's eyesight.
132
There are numerous sailors' superstitions, such as: it is considered bad luck for a ship to set sail on a Friday, to bring anything blue aboard, to stick a knife into the deck, to leave a hatch cover upside-down, to say "pig", or to eat walnuts aboard.
70