We used to purchase the large 25 lb bags of dry dog food from Costco. These would last us a very long time considering it was for two chihuahuas. When Tate was a puppy, he found a way to climb inside the large bag of dog food. When I went into the room that the food was kept, I heard rustling and saw the bad moving. To my surprise, I saw Tate’s little head poke out of the top with food crumbs all over his mouth.