This is true, but a friend of my dad's was once stalked by a cougar. He never knew it was behind him until it let out a roar.If your going to get attacked its most likely going to be a momma protecting her kittens. Remember, they prefer venison, not humans and toms will 99.9% of the time flight if encountered by human. They aren't brown bears for crying out loud. Curiosity is the main reason why they get killed.
It was sitting on top of a small knoll that dad's friend had sat down on the other side of.
It was deer hunting season, so any kittens would've been born at least 6 months prior. Chances are good they were grown and off on their own by then.
Fortunately, dad's friend kept his head and the cougar eventually wandered off.
Just goes to show, though, that the old saying about curiosity and cats may be something to keep in mind, if you choose to go hiking in cougar country.