A man was traveling north to Dallas. He needed to use the bathroom and so at a rest stop he goes into a stall. He sits down and was surprised to hear someone in the next stall say, "So how ya doing?"

The man gulps and thinks about what he should say and then decides to answer. So he clears his throat and says, "uh....I'm fine."

Then the stranger in the next stall says, "So where are you headed?"

Again the man, a little nervous answers, "Uh...I'm headin north to Dallas."

Then the stranger asked, "So what have you been up to?"

Again the man answers, "Not much, I'm actually on a business trip."

The man sat there waiting for another question when finally he heard the stranger in the next stall impatiently say, "Look, I'm going to have to call you back, some idiot in the next stall thinks I'm talking to him."