It looks like a difficult thing to do, if you're not used to doing it. Lots of balancing.
I explained what was happening to my boys. I took a few pictures, because even though bales and equipment are things we see all the time, I thought I might post a few for people who don't.
See the spear?
Maneuvering it off the trailer
On his way
I started to walk away and my son said, "Mom, can we watch him unload ALL the bales?"
Some things never get old.