I adopted my 1-year-old chi in April and have been battling with what seems to be an instinctual problem. I have a guinea pig and my chi (Bonnie) apparently wants to kill her. I have had to raise the cage, buy a new table, and have even tried moving the cage to multiple rooms without success. She is absolutely obsessed! I can't leave her anywhere near the cage or I have to endure constant barking and jumping and then chase her around to put her in a gated area. Is this an instinct? She doesn't chase bunnies or birds when she goes outside on walks but she does love to chase lizards. I tried a decoy (a stuffed animal that resembled the guinea pig) to accommodate her to the pig but it didn't end well for the stuffed animal. Help!