Not knowing if your dogs bark is not a true statement. We know for sure that ours not only does not bark, they don't drink water or eat while we are out. We have a Amazon Cloud cam with audio as well as video in real time. We can actually talk to the dogs and if they bark we can hear them. We also use a temp stick to monitor temp and humidity as well as it notifies us in it loses the connection. The way we know if we have a power failure is the ceiling fan would stop spinning. In addition to the above I always leave a key fob with either the cg host or a work camper in case something bad happens. In all our years of travelling I have yet to run into a cg that will not let us leave a key and they call us if power does go off.