It absolutely can be done. Years ago I was scouting elk pre-season when I spotted a big tom crossing the canyon in front of me several hundred yards away.I had an elk diaphragm in my pack and decided, “Why not?” A few minutes later, I saw a big tail twitch right behind me… Well, it seemed like a good idea at a time. Since then, I’ve had friends inadvertently call in cats while calling turkeys and elk, and even rattling for deer. Those approaches all wound up aggressive, close range, and scary. Of course, every time I’ve deliberately tried calling cougars during the season, there’s been no reply. My hounds make a great Plan B. Don