There are no public bathrooms anywhere near this area. The nearest ones are on the other side of that small hill you can see from our deck view. There are a couple of strip malls with 2 supermarkets about 4 blocks away once you get around that hill. It would have been a long walk to get there and I guess he couldn't wait.
I too thought he might have seen the camera, until I looked at it frame by frame as he walked away. He was looking at our deck from one end to the other end. At no time did he stop and stare directly at the camera. I was in the kitchen eating lunch when I spotted him standing below our house. I used the Blue Iris mobile app on a tablet to take control of the camera.