An animal behavior modification device is provided. The device includes a sound, vibration or motion sensor that is configured to generate electrical signals in response to an occurrence. The device may include a filter, which is tuned to recognize a dog barking event, and generate an electrical signal in response to recognizing an input signal indicative of a dog's bark. The device further includes a canister that holds a deterrent fluid under pressure. The device additionally comprises a motor module configured to rotate a shaft in response to the electrical signal from the filter. The canister has a spray nozzle for releasing fluid that affects the dog's senses. In response to rotating the shaft, the spray nozzle is depressed. A method of modifying the behavior of an animal using the device is also provided herein.
