If you care about animals AT ALL.
There's an artist, Nathalia Edenmont, who kills cats, mice, doves, rabbits, and other animals, mutilates their bodies, and then takes their photographs. She's on exhibit, among other places, at the Wetterling Gallery in Sweden. She has taken the top halves of five white mice and made them into finger puppets. And this is called art. This is not only inhumane, but morally reprehensible.
WARNING THESE PICTURES MAY OFFEND AND DISTURB YOU
The Wetterling Gallery's Justification of her work
There's an online petition going on if you're interested