Every pet owner knows that animals do some pretty odd things when confronted with those shiny instruments of witchcraft that humans call "mirrors." A cat named Sox seems particularly enchanted by the mirror in her owner's bathroom. First she engages in an intense staring contest with her reflection. But her behavior becomes even weirder at the 0:35 mark, when Sox starts posing in the mirror. Is it some kind of feline tai chi? A new dance routine? Or is she just baffled at how that other cat is able to perfectly copy her every move?