What is the closest you have ever been to a wild animal? For me, it was a whitetail doe that came up and sniffed my boot while I was turkey hunting. She slowly made her way put the hill, while I was sitting with my back to a tree when she sniffed my boot she realized what I was a took off like a bat out of Hell.
Garret Bush had a similar encounter except for him it was with a monster bull elk. He was hiding on the edge of a cornfield in Nebraska when this absolute monster comes down the edge and gets with in two yards before taking off.
That would definitely get my heart pumping not only for how close it got but also how big it is, absolute giant.