Killing a spider is not a particularly pleasant act, certainly not for women. But killing a spider and, as in the plague of frogs in Egypt, discovering hundreds of other spiders hatching from it - is much less pleasant.
One such unsympathetic case was reported on the Daily Mail website:
In South Australia, a man found a large spider in his kitchen and tried to kill it with a household broom. But to his surprise, not to mention his horror, hundreds of small spiders hatched from the spider, which began running around the kitchen.
It turns out that this is not a male spider, but a female wolf spider, which spins a silk web on its back in which it raises the hundreds of eggs that will later become its offspring.
After the eggs grow on her back, they hatch, the newborn spiders crawl on the mother's back and, after another period, go out into the 'big world'.
The strong blow tore that web apart, and hundreds of young spiders came to life, a little earlier than usual.