Ripley use to be so bad about it. My husband would look at any new toy I bought and give it a lifespan in our house (usually, less than a day). Ripley would "gut" everything. I finally found a toy that took him a year to gut - a denim mouse. He worked that thing over forever and his look of determination was hysterical. He was so proud the day he showed us the white stuffing all over the living room floor.