I read somewhere that Christmas is the most dangerous holiday for any pet. A real tree is a huge hazard because if a ferret were to eat any of the pine needles they could get very very sick. They have teeny digesting systems and anything, even their own food, can get stuck. For 20 years of my life we had a christmas tree, this year, at my very own apartment, I won't be having one because of my ferrets. Just too much of a hazard for my little darlings. I'd say that if it's a real tree, keep the ferrets in a seperate room. If it's a fake tree, still do the same because ornaments can be small. If your tree isnt' that big maybe put it on a table or something.