SAS has it right, sorry to say. My mother's Tabby cannot leave gift wrap ties alone! She didn't notice it until one day, Indra's ah, uhm, present in the litter box came giftwrapped!

While I love watching them play with the yarn, gift wrap ties, etc., it is only with my close supervision. Probably best to leave it all alone.

Thanks for the thought on the dental floss. Allie sits on my lap while I floss, and plays with it. While I have never seen her go into the trash after it, beginning tomorrow am...I will put it in the kitchen trash. Thanks for bringing that to my attention!