A wild rabbit was caught and taken to a National Institute of Health laboratory. When he arrived, he was befriended by a rabbit that had been born and raised in the lab.
One evening the wild rabbit noticed that his cage hadn't been properly closed and decided to make a break for freedom. He invited the lab rabbit to join him. The lab rabbit was unsure, as he had never been outside the lab, but the wild rabbit finally convinced him to give it a try.
Once they were free, the wild rabbit said, "I'll show you the number-three best field," and took the lab rabbit to a field full of lettuce.
After they had eaten their fill, the wild rabbit said, "Now I'll show you the number-two best field," and took the lab rabbit to a field full of carrots.
After they had their fill of carrots, the wild rabbit said, "Now I'll show you the number-one best field," and took the lab rabbit to a warren full of female bunnies. It was Heaven—nonstop lovemaking all night long.
As dawn was beginning to break, the lab rabbit announced that he would have to be getting back to the lab.
"Why?" said the wild rabbit. "I've shown you the three best fields in the wild, why do you want to go back to the lab?"
The other rabbit replied, "I can't help it. I'm dying for a cigarette!"