NASA decided to send a shuttle into space with two monkeys and an astronaut on board. After months of training, they placed all three in the shuttle and prepared for launch.
Mission Control Center announced, "This is Mission Control to Monkey One. Do your stuff."
The first monkey began frantically typing and the shuttle took off.
Two hours later, NASA's mission control center announced, "This is Mission Control to Monkey Two. Do your stuff."
The second monkey started typing like mad and the shuttle separated from the empty fuel tanks.
Another two hours later Mission Control Center announced, "This is Mission Control to Astronaut... "
At this, the astronaut shouted "I know, I know -- feed the monkeys and don't touch anything."