What is a four letter word that can make any animal go away but that you can only add one letter from the word "Cat"?

Ah, what a fun little riddle! The Word you're looking for is "Scat." It's like a gentle whisper that kindly asks our animal friends to go on their way, allowing them to roam freely in their natural habitats. Just a small change from "Cat" makes all the difference in creating harmony between us and our furry companions.