An acorn at the window will keep lightning out
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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
According to an age old custom, carrying a dead shrew in your pocket wards off rheumatism!
24
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.
131
Opening an umbrella indoors is said to result in 21 days of bad luck. Some traditions hold that it is only bad luck if the umbrella is placed over the head of someone while indoors.
75
Placing a hat on the bed is, apparently, bad luck. (South Carolina)
9
At times, a horseshoe may be found above doorways. When positioned like a regular 'U' it supposedly collects luck. However, when it is positioned like an upside-down 'U' the luck supposedly drains.
78