Professional endorsements
endorsements
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RYAN, Terry " The Tool Box for remodeling your problem dog ". (1998) New-York : Howell Book House |
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" Citronella spray collars have been used with success. These have a sound sensor that triggers a burst of citronella spray when the dog barks. The liquid is a water-based lemon smell that is actually quite pleasant, but dogs find it disagreable enough to learn quickly not to bark when the collar is on ". P. 136 |
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