Not handgun related, but the time my adrenalin got pumping the most was a bear encounter while archery hunting. It was one of those days when I just needed to get outside and clear my head. I was coaching HS football at the time. It was a Friday night and we'd just lost a game we should have won. I couldn't get it out of my head, couldn't sleep. I got out of bed around 4 AM and drove 2 hours to one of my favorite places to hike. I wasn't seriously hunting, but since archery season was open, I carried a 50 year old recurve with me.
I was hiking on a trail and had gotten about 2 miles from the truck when I spotted a black bear on the same trail, moving in the same direction. He was 250-300 lbs. I had a short, but serious conversation with myself. I was 2 miles from the truck, and the truck was 20 miles from pavement. I was alone with 6 sharp sticks. At that time it was illegal to also carry a handgun while archery hunting. I asked myself, do I try to stalk closer, leave him alone, or go back to the truck?
Ultimately I decided to go for it. He was ahead of me and moving in the same direction. It was a gusty, windy morning and blowing in my favor. I walked at a brisk pace trying to close the distance when the wind blew, and froze when it stopped. After about 10-15 minutes I'd closed to about 35 yards. Still too far for me with a recurve.
I don't think he ever knew I was behind him, but he turned off the trail to the left. It was too thick to continue to stalk. I moved off the trail to the left about 25 yards and sat for a couple of hours hoping for a shot. Never saw him again. But it did clear my head. I forgot all about the game.