Dogs in Kerala might be more active, because there are Vishnu MAyA temples owned by many families in that state! And, I know a few persons living there, who describe their 'பேய் encounter episodes'! Note: I had been to Thrissur recently and saw a lot of Vishnu MAyA temples maintained by different families. Vishnu MAyA is the son of Lord ShivA and Devi PArvathi. He is bestowed with 'Sudharshana chakram' to destry evil spirits!! Wikipedia has more info. about Vishnu MAyA ....