A guy walks into a pet store and was looking at the animals on display.

While he was there, an engineer from the local airport walked in, and said
to the shopkeeper, "I'd like a Line Service monkey, please." The clerk
nodded, went to a cage at the side of the store and took out a monkey. He
put a collar and leash on the animal and handed it to the engineer,
saying, "That'll be $1,000." The engineer paid and left with the monkey.

Surprised, the first customer went to the shopkeeper and said, "That was a
very expensive monkey. Most of them are only a few hundred dollars. Why
did that one cost so much?"

The shopkeeper answered, "Ah-----that was a line service monkey. He can
park, fuel, and service all types of aircraft, conduct all required ground
ops testing, rig aircraft flight controls, and all with no mistakes. He's
well worth the money."

With his interest peaked, the customer then looked around and spotted a
monkey in another cage with a $10,000 price tag. "That one's even more
expensive! What can it do?" he asked.

"Oh, that one is a "Maintenance Supervisor" monkey. She can instruct at
all levels of aircraft maintenance, supervise all corrective and
preventive maintenance programs, supervise a crew of maintainers, and even
do most of the paperwork. A very useful monkey indeed," replied the
shopkeeper.

The customer continued to look around the shop a little longer and found a
third monkey in a cage. The price tag read $50,000.

Reading that, the customer exclaimed, "$50,000!!!! Holy smoke, what does
this one do?" "Well", the shopkeeper said, "I've never actually seen him
do anything but drink beer, screw the girl monkeys, and play with his
dick, but his papers say he's a pilot!"