WELDON SPRING, Mo. -- A family was driven from their suburban St. Louis home by thousands of venomous spiders that fell from the ceiling and oozed from the walls.

Brian and Susan Trost bought the $450,000 home overlooking two golf holes at Whitmoor Country Club in Weldon Spring in October 2007 and soon afterward started seeing brown recluse spiders everywhere, The St. Louis Post-Dispatch reported. Once when showering, Susan Trost dodged a spider as it fell from the ceiling and washed down the drain.

An expert on brown recluse spiders told CBS affiliate KMOV-TV that the creature's bite can be very serious depending on how much venom is injected.

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At a civil trial in St. Charles County in October 2011, University of Kansas biology professor Jamel Sandidge - considered one of the nation's leading brown recluse researchers - estimated there were between 4,500 and 6,000 spiders in the home. Making matters worse, he said, those calculations were made in the winter when the spiders are least active.

http://www.cbsnews.com/news/thousands-of-venomous-spiders-force-family-from-upscale-missouri-home/