Had one yesterday. Was on my usual run to drop off some timber and it just happened. Very startled. Felt like the first long fingers of winter frost were invading my crevaces. Then I cried. But then the unusual happened... It was a no wiper. All in all 5/10 situation.
All I can come up with is that he pissed in the toilet then plopped a nice sized poop into the bowl, causing the yellow piss water to invade his anus. He, in essence, peed in his own butt.