A Southern California family trying to bust a beast attacking its pets by rigging a trap to catch the sneaky predator got the surprise of a lifetime when they found a mountain lion lurking inside. The Hernandez family noticed that several of its henhouse chickens and four cats had gone missing from their Fallbrook backyard in San Diego County . “There was a big hole on the rooftop and there were chickens missing and there were feathers all over the place,” Sonia Hernandez told FOX 5 . The