I pulled into a wooded, picnic-table-equipped roadside rest stop one time in central Montana. (It was a low-traffic 2-lane state highway, not an Interstate.)
When I got about 20 yards from the picnic table, I noticed one of these standing in the middle of it with a shredded animal of some sort pinned between his feet.
There was no one else around.
He was glaring at me, and a shimmering word balloon formed in the air above his head.
It was very easy to read. What did it say?
"This is MY spot, and if you don't keep driving... I... will... kick... your... ass."
What did I do?
Kept driving, of course.