My only cougar call-in story was an accident. I was archery hunting and was cow calling for elk just after sunset. All of a sudden my "spidy sense" kicked in telling me there was something behind me. When I slowly turned around there, about 15 yards away, was a mountain lion crouched and sneaking up on me. He froze and I froze. Dark was closing in and I didn't want to deal with him in the dark. I figured that no elk was coming in. I needed this guy to leave. So, I spread my arms out and took a step toward him and yelled as loud as I could "hey!!!". He turned and bolted. I walked all the way back to camp with my senses on high alert. For that half hour hike you would not have been able to shove a needle up my ass with a jackhammer.
