my cat doesn't usually attack people, but when he climbs into a plastic bag (from water bottles), he thinks he's invisible, and violently assails my feet when I pass by.
I thought it couldn't get cuter than when he MGS'd across the kitchen inside a bag yesterday, stopping whenever I looked at him. . .
but he just chased me around the entire apartment with a hunk of stiff plastic three times his size hanging off his head, like some kind of feline Pyramid Head.