For those that don’t know, a coyote roller is a 4-foot aluminum roller that is designed to stop animals from scaling the top of a fence. The way that it works is when a coyote or other animal climbs to the top of a fence, the aluminum roller spins when they try and get their footing. When the roller spins they are unable to hold on and harmlessly fall to the ground.
An L-footer is a great way to stop your dog from jumping over the fence if used a little differently. You’ll want to turn it upside down and use it at the top of the fence. Create the L-shape and securely fasten the short side to the top of the fence and have the rest of the hardware angled towards the yard so that when your pooch looks up they will see fencing.

Liz London is a certified dog trainer through the Certifying Council of Professional Dog Trainers (CPDT-KA) & the Karen Pryor Academy (Dog Trainer Foundations Certification) with regular continuing education courses from the top animal trainers from all over the world. She has trained zoo animals, search & rescue canines, gundogs, and helped people raise happy, healthy, and well-behaved canine companions for over ten years.
Make sure other family members and visitors understand this command, as well. It is crucial that your dog understand that all family and visitors are above his rank in the pack. Otherwise, he will lash out and try to assert himself on everyone. While using the Off command may not be appreciated by most visitors, but it is more important that a dog has a good greeting manner with all people. A little effort on everyone's side makes your dog disciplined and docile.
When a dog jumps on a human of its own free will, it is not "greeting" the human, it is asserting its dominance over the human; it is the dog communicating that it is alpha and/or wishes to own/control the human. A subordinate would never dream of running over and jumping on the alpha dog of the pack. Space is respect and lower members of the pack respect the higher members. If your dog jumps on humans, it does not respect them. Note: when a young puppy jumps on humans it is sometimes its attempt to reach one's face. Puppies need to be taught not to jump up on humans as this behavior will manifest into other meanings as the puppy grows up into an adult dog.
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