A blonde is speaking to her psychiatrist. "I'm on the road a lot, and my clients are complaining that they can never reach me."
The psychiatrist asks, "Don't you have a phone in your car?"
"That was a little too expensive, so I did the next best thing. I put a
mailbox in my car.
"How's that working?"
Actually, I haven't gotten any letters yet," the blonde replies.
"And why do you think that is?"
The blonde says, "I figure it's because when I'm driving around, my zip code keeps changing."
If it's green or wriggles, it's biology. If it stinks, it's chemistry. If it doesn't work, it's physics. ~Handy Guide to Science
