When Cato the cat’s family decided to add a dog to their family, they knew they’d have to be cautious. They decided to let Cato see the pup through the window well before actually introducing the two— and it’s a good thing they did! As Karen Gillette’s video shows, Cato did not take kindly to another animal in her territory! Since Gillette assures us everything worked out, Cato’s reaction is totally funny. Take a look!