Willie--Available for Adoption

Hi! Mom calls me Willie! I'm a fun lovin guy. I'm very people friendly and love attention. I'm playful and active outside and settle down in the house. I was a stray in a shelter and had to go to a rescue because I had to be treated for heartworms. I'm all better now. I like to chase cats. I just can't help myself. I am an expert fence jumper. So, I need a home with a 6' fence all the way around the yard or an invisible fence might be good for me. Willie is a Border Collie/Australian Shepherd mix.