Could this be called Potty humor?

Traveling across country by car, I decided to stop at one of those rest areas on the side of the road. I go into the restroom. The first stall is taken, so I go into the second stall. I had just sat down when I hear a voice from the other stall ask, “Hi, how’s it going?”

I am not the type to strike up conversations with strangers in restrooms sitting on a toilet. I didn’t know what to say, so finally I said, “Not bad.”

Then the voice asks, “So, what are you doing?”

I am starting to find this a bit weird, but I reply, “Well, I’m going back east...”

Then I hear the guy, all flustered, say, “Look, I’ll call you back. Every time I ask you a question this idiot in the next stall starts talking to me”