Are you being scared of spiders? Do you have arachnophobia? What would you do if your friend would bring the spider in your shared apartment?
Arachnophobia is an intense and unreasonable fear of spiders and other arachnids such as scorpions. Treatment is typically by exposure therapy, where the person is presented with pictures of spiders or the spiders themselves.
As with other phobias, arachnophobia can develop in a person because she sees the reaction to spiders of others with the phobia. For them, it's a learned response—it makes an impression when they see a family member shriek in terror and run out of the house at the very sight of a cobweb. Reflection Line video.