Ferrets are insatiably curious. Nothing is safe if they can figure out a way to climb to it, jump to it, or, barring all else, dig it up (death to carpets).
Your ferrets are adorable, your gray one reminds me of our Smokey Lou. We also have Peanut Butter, our baby girl. What a riot! We love them. They get along great with the dogs, other than trying to ride our lab Nikki's back. Elly, our rat terrier plays great with them. They have brought a level of joy all their own to the family. Glad to see people that love their stinkies like we do!