There's nobody around him, maybe he was in front and didn't want to lose the lead? LOL
True story, a friend of mine trained for a year to do a half marathon - he got so nervous by the whole event, he did actually poo his pants a few miles into it. He had to stop of course and emptied out the disgustus in a park. he didn't complete the race.
Those running shorts are wierd - maybe they hug too tightly at the back and so the poo gets squeezed out the front? Or it's so runny, it has gone down the back of his legs too?
Omg, what am I doing, trying to rationalise a jogger pooing himself, right after breakfast too