Two people breaking a wishbone is said to lead to good luck for the person with the larger piece.
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Once a wedding ring has been placed on the finger, it is considered bad luck to remove it.
117
Breaking a mirror is said to bring bad luck for 7 years. To "undo" this, take the shards of glass and bury them underneath the moonlight. In ancient times, the mirror was said to be a window to the viewer's soul. If that mirror were to break, it would
123
It's bad luck to leave a house through a different door than the one used to come into it.
143
Before traveling a person should, apparently, sit on their luggage. (Russian)
117
A single magpie is considered a sign of bad luck. A Guide to the Scientific Knowledge of Things Familiar recites an old proverb concerning the incidence of bad weather when magpies forage alone and a possible scientific explanation for this.
49
Placing a hat on the bed is, apparently, bad luck. (South Carolina)
9
An acorn should be carried to bring luck and ensure a long life.
115