I work this in a safe place for me. I use the squirrel itself as the reward for a behavior. Usually I use something as simple as a watch and then release the dog to go chase the squirrel. Alex is squirrel obsessed when at home in the yard. Understatement. In that way that shepherds can be..grin. Later I will ask for a down or whatever before releasing the dog.. Once you have that control of, gee, I have to do something for mom before I can chase the squirrel, attitude, You become the person who controls access to squirrels. Just like we control access to strange dogs, food, cars , etc. without a yard this could be done in a park on a longline just as easily. Just make sure the line is long enough to reach to the tree the squirrel is in.. ask me how I learned that.. grin.. I have also used Karyn's method of speeding off, with some success but combined with the other it worked lots better.. Also a solid leave it cue helps.. so many building blocks, so little time.. grin. Sandy Foushee Infinite Paws-Abilities Training and Service Dogs Teamed with Alexandra Guide/Service Dog Colorado Service/Assistance Dog Club - Trainer.- **************Start the year off right. Easy ways to stay in shape. http://body.aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489