We're buying property in the eastern half of the State of Washington which has rattlesnakes. We have two labradors and they take no notice of the non-venomus snakes we have here on the West side of the Cascades. I'm a little concerned that the warning rattle might spark curiosity rather than caution. One of my labs seems to find ways to mix it up with porcupines and coyotes. Thank God no skunks... Am I justified in my concern or to dogs have a naturally good sense on such matters?