If your snakes big enough it will eat your dog... it's happened ive saw it. Just be smart to eep rubbermaid tight sealed and maybe weighted with good ventilation. and weigh down the screen with something 5 pounds or more. much as it can hold without falling. If shes against snakes that eat rats in captivity. just say well you eat cow thats produced for you in captivity. You eat ham which is a pig killed just for you to eat. You eat all these kinds of meat killed just for you to eat. So your even worse then the snake! He eats only a rat or 2 a week. you eat a hamburger whenever you want wherever you want! Thats how i convinced my gf. ...On the other hand she only eats a hamburger per week now. HAHAHA And shes allowing me to get another bp!