Babysitter Needed For 10 Yr Old In Knoxville.

We are looking for an occasional sitter to hang out w/ our 10 yr old son, usually on weekend mornings, while my husband and I do projects around the house. W responds best to sitters who are willing to sit on the floor with him & actively engage, usually by building Legos & chatting about his other interests (Star Wars, Minecraft, drawing, creative projects & science.) We have a great backyard with a tree fort & would love you to encourage outdoor time whenever possible. W has high-functioning Autism, so experience with quirky kiddos is a plus, but not required. He is pretty advanced for his age and in many ways is more like a 15 yr old than a 10 yr old. We are looking for a sitter who: will not bring their own kids along, is a non-smoker, is available Sunday mornings, lives in Knoxville area, is ok w/ a small dog. Thanks!