Henry Lizardlover has been raising lizards since the early 1980s. He has had up to 60 or more in his house through the years. He said they are intelligent beings, not "creepy, crawling creatures that don't have any intelligence." He aims to replace people's prejudices with "a little bit of warmth and a little cuddly feeling for lizards." Watch "Pet Crazy" on "20/20" Friday at 10 p.m. ET. (Henry Lizardlover)