Monster spiders from Sci-Fi films and nightmares actually exist in Northern Australia. This man found out the hard way when he decided to finally clean out the storage shed in his back yard after leaving it for years.
When he opened it he seen thousands of Massive puppy sized spiders. He took some video but apparently while the door was open thousands of the critters escaped and took over his home.
He was forced to move his family out for weeks while they exterminated his property. Check it out: