Here's your sign..er headline...

From MSNBC:

Unaware Police Carry Guns, Mountain Lion Charges at Officer

Arcadia police fatally shot a 140-pound mountain lion that killed a dog Wednesday in an Arcadia backyard, then charged at an officer, police said. The encounter near the Angeles National Forest in the 2200 block of Canyon Road occurred shortly after someone reported the big cat in their back yard about 7:50 p.m., Arcadia police Lt. Larry Goodman said. An Australian shepherd that belonged to the residents was barking at the cougar, then suddenly fell quiet, he said. When the officers entered the backyard, they saw the mountain lion standing over the dog. The cat then charged at the officers, prompting them to open fire, he said.