Hi, Im new here, so I thought I might introduce myself, seeing as how thats the polite thing to do. My name is Kimberly, and I have a fourteen month old Australian Shepherd/Jack Russell mutt, who believes he is thirty two pounds of killing machine. Ten foot tall and bullet proof. However, he isnt, he is just a big baby, and lives for his tennis ball and chicken treats. Looking forward to meeting everyone and getting some insight onto why my dog does what he does and how to fix it!