Jackie used to bark at everything during the night, especially if Hunter barks at something (his own shadow..lol). I am actually enjoying a decent night’s sleep now. We tried to use one on Hunter but I think it scared him or something because he had to be in the house after it would shock him for barking. Being an outside dog this did not work. So we still have Hunter barking all night, but at least Jackie isn’t joining him.
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Have a great day!