Jeff Traynor, A.C.E. August 2, 2019 North America, Public Relations, Headlines Hiker blasts Metallica tune to ward off stalking cougar Jeff Traynor, A.C.E. August 2, 2019 North America, Public Relations, Headlines We can now confirm rock giants Metallica can also double as a predator deterrent if you’re hiking the forested trails of British Columbia, Canada.