Spiders often appear in horror movies, haunted houses and, worst of all, inside our homes where they are usually met with shrieking and the bottom of a shoe. It's easy to understand why people cringe at the sight of a spider on the wall. The way they move is startling and unpredictable, their webs are sticky and their hunting methods can be rather gruesome. There are also many myths floating around about spiders (no, people don't regularly swallow spiders in their sleep!) that make this pest seem much scarier than it actually is. In reality, almost all types of spiders found in the United States pose no threats to people..