These folk beliefs about "the curse" are suprisingly prevalent; chances are, you've encountered one or two yourself:

Hair washed during a gal's period will not hold a curl; it will instead hang limp and ratty.

Fruits or vegetables canned will spoil in the can.

Canned sauerkraut would not ferment if the gal was in the same house.

Visits to the dentist should be put off until after 'the curse' has passed, because fillings put in during this interval will fall out.

Homemade mayonnaise will not come together; it will instead curdle.

Touching fruit trees during this time is prohibited because such contact will spoil the fruit even as it hangs on the tree.

A gal experiencing 'a visit from Aunt Flo' should avoid going near wineries, lest her presence turn the wine into vinegar.

Breadmaking will fail because the dough will refuse to rise.

A girl enduring 'the scourge of Eve' mustn't be allowed to take a turn at the butter churn because the butter will not "come," that is, not form into a solid mass.

Any jam or jelly a woman attempts to make at 'that time of the month' will fail to set.

Hams hung to cure must not be touched lest contact with her cause them to spoil.

During her monthlies, a gal must not butcher meat lest she cause it to rot.