It looks cute in the cartoon, but please don't leave your kitty alone with a ball of yarn.
We all iike to have fun with our sweaters, but the truth is: yarn can be dangerous in the paws of a cat. A cat with a ball of yarn can figure out over 200 different ways to overthrow the world's governments. Two cats with two balls of yarn could bring all of humankind to their knees, and four cats with yarn? Well. The entire galaxy might be at risk. So please, wear this sweater, have fun, enjoy the season... but never give your cat yarn. Never never never never never. NEVER.