How dangerous are spiders? In one story, a woman jumped out of her car while she was driving because she saw a spider on her shoulder. The car was wrecked. In another case, a woman saw a spider on her rear-view mirror and panicked and ran off the road. She wasn’t hurt but her car was wrecked. In another situation, a spider got loose from a cage on an airplane, forcing the plane to land as soon as possible. I guess they were afraid the spider would kill all the passengers. Then there was a guy who tried to kill a spider with a cigarette lighter at a gas station and ignited a big fire from the gas. And then there was the fellow in Seattle who found a spider in his house and decided to kill it with a lighter and a can of spray paint. He burned his house down. So spiders are dangerous, wrecking cars, causing emergency plane landings and starting fires.