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I foolishly enabled this skill, then told Alexa "Alexa ask Guard Dog to Guard". The Echo then began randomly barking more or less incessantly. At that point, never having seen a command to make it stop I said "Alexa disable Guard Dog'. Alexa complied but kept barking. I then said "Alexa delete Guard Dog". Again compliance but still continuous barking. Then I reinstalled the skill, telling Alexa "Alexa ask Guard Dog to guard" then immediately telling Alexa "Alexa ask Guard Dog to stop". OMG finally silence! LOL, if you give examples for how to start a nightmare, please give examples for how to end the nightmare!