Do you usually kill spiders? If yes, well then you should stop. Spiders almost never bite people. If we didn’t have spiders, the world would over populate with bugs, and they would practically take of the whole world (and they would also be huge). All spiders are poisonous, but there are very few that can actually make you sick or cause serious illness. Plus most spider fangs are really small! So please, think twice before you kill these tiny creatures.