As an avid squirrel hunter (sorry, PETA!) I had the brilliant idea of training my Jack Russell to tree squirrels. This is not as far fetched as it sounds, as JR's are born hunters. I tied a squirrel tail to a string, and pulled it across the yard, where I pulled it up into a tree. Fancy was all for it, jumping and trying to climb the tree.
Now, the first day in the woods. Fancy ran, nose to the ground, so I thought "success!". Yes, until she discovered some small animal's burrow! It was then that her heritage came into play. Jack Russell Terriers were bred to go after foxes in their dens! JR's are VERY single-minded when it comes to digging in holes! I repeat, VERY SINGLE-MINDED! After several hours of unsuccessful hunting, I pulled a very resistant Fancy out of the now extremely excavated burrow, and literally had to carry her back to the house. Right back out the pet door she went, straight into the woods, directly back to her diggings! Have I mentioned that Jack Russells, despite their small size, can move at a rate that far exceeds that of a 46 yr. old Redneck? I finally had to close her up long enough for her attention to be distracted by her chew toys.
Thank heavens that fox hunting is not popular in Mississippi!