You're getting downvoted, but this is exactly right. We create a mutant mouse that has symptoms that are somewhat similar to the disease we're studying. Then we

You're getting downvoted, but this is exactly right. We create a mutant mouse that has symptoms that are somewhat similar to the disease we're studying. Then we find a drug that cures the "disease" in the mouse. Then we try it in humans and it fails and we make the shocked Pikachu face.