They minght becom very anxious or start sweating. Their heart might start to speed up or they might have trouble breathing. A person who suffers from arachnophobia might avoid going near dark corners. They might avoid reaching underneath their kitchen sink to grab a bottle of detergent. They do this because they fear that a spider is living there and will attack them. People who suffer badly from arachnophobia cannot enter a room unless someone else checks it out for spider first. One woman, called Miss Muffet, was so afraid of spiders that she washed her car twice a day. She even used a burning cigarette to scare off the spiders.