Tarn Barrel rescue

I recently performed a rescue up in the hills, at an elevation of 1300m. The clouds were gathering and the weather was starting to turn. The victim was lying partially immersed in water, had several puncture wounds and was suffering from advanced oxidation..... What was I going to do?.........
Earlier my husband and I had gone for a gentle overnight wander up the Sylvester Hut, from the Cobb Valley. On day two we were going to explore the tops a bit, up to Iron Hill, but I developed a bad cold overnight, so didn’t feel up to it. My husband headed off by himself while I had a bit of a rest then wandered up the track for 20 mins to Lake Sylvester itself. Once there I was playing around with taking some photos. I noticed an old fuel drum from a helicopter lying in a tarn. It kind of made for an interesting photo, the contrast between an old decaying human-made object and the aliveness of the nature around it. But it really looked totally out of place. I decided I had to try to remove it. And one has to be prepared to live their LNT principles, not just preach them!
I went to haul the drum out of the tarn. Hmm, perhaps there was a reason no one else had moved it. Its small puncture wounds had allowed water to enter so it was now about 100kg in weight. I managed to roll it over to allow some of the water to drain out a hole in the side. This was only going to be so effective while the lower half of the drum remained submerged in the water. I managed to yank the drum out of the tarn by rolling it to the edge, shoving rocks under one end and hauling the other end out. I left the drum to drain while I put my boots back on. This was taking a while, so I started rolling it back anyway. I am a little embarrassed to admit that only at this point did it occur to me to pound through the rust with a rock to enlarge the drainage holes.
Free of water, the drum moved much more easily, though still awkwardly over rocks and up the narrow rutted path. It was pretty funny, pushing, shoving and kicking this drum along. A good problem solving exercise. 1.4km of problem solving exercise.
Eventually my husband returned to the hut from his trip and came back out looking for me. He laughed; of course I found something to do relating to Leave No Trace when I was meant to be resting!
My husband helped me roll the last 100m to the hut. Here we left the drum with a note to DOC to take it out the next time they came up with a load of firewood. We thought it would have been pretty hard to control the descent of the drum down the steep track switched back track back to the carpark. I have fond ideas that it is now being used as a planter box in someone’s garden.

What the most interesting thing you've removed from the wilderness?