In high school, a bunch of guys on the basketball court were trying to throw a football the full length of the court and make a basket. After several of them were not even close, I started running my mouth about how much they sucked. So, they toss me the ball and sad lets see you do better (or something to that effect). I swished it on my first attempt......and only attempt. They were all trying to get me to do it again; but I was smart enough to know to let my perfect attempt stand.
Other than that I guess best physical feats would include some of my days backpacking the Appalachian trail. There was a day that my son got ill on the trail and we had to stop for the night well short of our planned destination. Unfortunately, there was no water source in the area. The next morning we decided to backtrack to get to a road where we could get picked up. We were already getting low on water from hiking the day before and it was a stretch without any water (springs) for awhile, but the shortest route for extraction. He was losing fluids with diarrhea, so I basically stopped drinking water to save it for him and took most of the weight out of his pack and put into mine. Later in the day, I was awfully close to just dropping the pack and leaving it on the trail I was just spent; but finally made it to a spring and refilled. It made it pretty clear to me how dangerous dehydration can be.
How much of the trail did you do? The AP is on my retirement list if the body holds up!