The residents are believed to be common garter snakes, a type found throughout the United States. They are not poisonous and are harmless to humans. A pest inspector has estimated they are living in the house in their thousands. 'It's not a problem, it's an infestation,' Mr Davis bravely continues. 'It's been a horrible experience.'

Even more horrible for those living there. Previous owners describe the terror of trying to sleep at night, never knowing when your bed could be invaded, in a YouTube video from as far back as 2006.

With a video!