They're meant to be affectionate, loyal faces in your home, but it seems nobody told this group of surly pets.
This hilarious collection of the most sour-faced domestic animals shows just how evil pets can look when the mood strikes.
Among the gallery of sinister snaps is a frog sporting a particularly evil smile, cats pictured with typical disdain, and even puppies scowling at the camera.
Link and the rest of the pictures
