>>2600518Just guessing here but I could imagine a scenario where he could by going to wipe, as in moving the rock toward his rear with a plan to wipe off some excrement. What could happen during that phase, we will call that the approach phase, is he could be startled. Lightning, a bear, loud bird chirp, etc.
So during the approach phase he would be initially aiming at the portions of his rear where he believed the excrement to be located. Due to the startling his aim could be affected. Instead of the rock contacting the original target area it would contact some other area. In addition, the startling could distract him so his natural feedback loop that decreased his approach speed after making contact with his skin would be disrupted. He could continue to apply force to the moving rock.
All of these conditions being what they are, one undesirable outcome could be that the rock would penetrate his anus, maybe quite far in.
I think this is the scenario the poster was imagining when he used the phrase “accidentally”.
