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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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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Two people breaking a wishbone is said to lead to good luck for the person with the larger piece.
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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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In Asia, the digit 4 never appears in any Nokia handset model number, because 4 is considered unlucky in many parts of Southeast/East Asia.
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Once a wedding ring has been placed on the finger, it is considered bad luck to remove it.
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An acorn should be carried to bring luck and ensure a long life.
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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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