Leaving Miami for Ft Lauderdale, a guy decides to stop at one of those rest areas on the side of the road.

He goes into the bathroom. The first stall is taken,
so he goes into the second stall.

He had just sat down when he heard a voice from
the first stall............

"Hi there, how is it going?"

The guy was shocked and didn't know what to say, so he finally said:

"Not bad............"

Then the voice says:

"So, what are you doing?"

The guy feeling weird about the whole thing says:

"Well, I'm going to Ft. Lauderdale.........."

The guy in the first stall gets all flustered, and says:

"Look, I'll call you back. Every time I ask you a question, this idiot
in the next stall keeps answering me!!!"