Sure, a cobweb in the living room might not look the best outside of the Halloween season, but that's a small price to pay to not have gnats buzzing around my face or cockroaches scurrying about ...

Fortunately, fatalities are fairly rare; the spiders are nonaggressive and bite only in self-defense, such as when someone accidentally sits on them. The animals most at risk from the black widow' ...

Most exposures to black widow spider venom are accidental, but in a rare medical case, the exposure was intentional.