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.
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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.
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Pirates believed that piercing the ears with such precious metals as silver and gold improved one's eyesight.
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Amber beads, worn as a necklace, can protect against illness or cure colds.
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When you speak of bad luck, it is said that one should always knock on wood. Also knocking when speaking of good luck apparently helps with having good luck. This is an old Celtic tradition related to belief of wood spirits.
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If you catch a falling leaf on the first day of autumn you will not catch a cold all winter.
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Before traveling a person should, apparently, sit on their luggage. (Russian)
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According to an age old custom, carrying a dead shrew in your pocket wards off rheumatism!
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