Guy Poops His Pants, and Then Leaves It on Someone's Sidewalk

It's not clear where this happened. Somebody set up a security camera hoping to catch a dog that had been pooping in their front yard. Turns out it wasn't a dog. The video shows a guy walking on the sidewalk in front of the house. 

He stops, apparently to do his business . . . and then he takes a few awkward steps before stopping again to SHAKE it down his leg. Then he opens the bottom of his pants, and lets the poop drop to the pavement . . . and leaves.