by Tina Richardson
(San Antonio, Texas)
We have a wonderful Jack Russell named Trixie. She is 2 years old and is very petite weighing in at 9 pounds. Trixie has a strange habit of attacking her hind legs. Occasionally she will do it spontaneously. Whenever we pet her near her tail, she whips around and starts attacking herself. It is bizarre and disturbing. Any insight to what may be her problem?