I HAVE HAD THEM FOR ABOUT A WEEK AND A HALF, And I Have 2 Dogs, 2 Cats, And 2 Gerbils! And I Am Worried That (the Dogs) Are Stressing The Pigs Out! They Just Smell At There Cage And The Piggy's Scatter Into Their House, But They Also Run When Anyone Comes Into The Room Is This Normal? Do They...