Does anyone else have trouble keeping their dogs out of the chicken feeder? Our birds free range during the day and our Min Pin uses the opportunity to sneak through the pop door of the coop and help herself to chicken feed. We use a hanging 5 gallon pail as a feeder. We feed ducks and chickens so it has to be fairly low to the ground and any opening large enough for a chicken is large enough for the dog. Specifically, I'm wondering if any one has tried adding cayenne to the chicken feed to keep the dog out? Any other suggestions are welcome.