From the ArcaMax Publishing, Jokes Newsletter:
http://www.arcamax.com/news/jokes/s-32080-837938
A photographer for a national magazine was assigned to take pictures
of a great forest fire. He was advised that a small plane would be
waiting to fly him over the fire.
The photographer arrived at the airstrip just an hour before sundown.
Sure enough, a small Cessna airplane was waiting. He jumped in with
his equipment and shouted, "Let's go!"
The tense man sitting in the pilot's seat swung the plane into the
wind and soon they were in the air, though flying erratically.
"Fly over the north side of the fire," said the photographer, "and
make several low-level passes."
"Why?" asked the nervous pilot.
"Because I'm going to take pictures!" yelled the photographer. "I'm a
photographer, and photographers take pictures."
After a long pause, the "pilot" replied: "You mean, you're not my
instructor?"