Toilet Talk

While driving back from North Carolina, I decide to make a stop at one of those rest areas on the side of the road. I go in the washroom. The first stall was taken so I went in the second stall. I just sat down when I hear a voice from the next stall...

"Hi there, how is it going ?"

Ok I am not the type to strike conversations with strangers in bathrooms on the side of the road. I didn't know what to say so finally I say:
"Not bad..."

Then the voice says:
"So, what are you doing ?"

I am starting to find that a bit weird, but I say:
"Well, I'm going back east..."

Then I hear the person say all flustered:
"Look I'll call you back - every time I ask you a question - this idiot in the next stall keeps answering me!"