A rabbit one day managed to break free from the laboratory where he had been born and brought up. As he scurried away from the fencing of the compound, he felt grass under his little feet and saw the dawn breaking for the first time in his life. "Wow, this is great," he thought. It wasn't long before he came to a hedge and after squeezing under it he saw a wonderful sight - lots of other bunny rabbits, all free and nibbling at the lush grass.

"Hey," he called. "I'm a rabbit from the laboratory and I've just escaped. Are you wild rabbits?"

"Yes. Come and join us," they cried. Our friend hopped over to them and started eating the grass. It tasted so good. "What else do you wild rabbits do?" he asked.

"Well," one of them said. "You see that field there? It's got carrots growing in it. We dig them up and eat them." This, he couldn't resist and he spent the next hour eating the most succulent carrots. They were wonderful. Later, he asked them again, "What else do you do?"

"You see that field there? It's got lettuce growing in it. We eat that as well." The lettuce tasted just as good and he returned a while later completely full.

"It's fantastic out here in the world!" he told them.

"So, are you going to live with us then?" one of them asked.

"I'm sorry, I had a great time but I can't." The wild rabbits all stared at him, a bit surprised. "Why? We thought you liked it here."

"I do," our friend replied. "But I must get back to the lab. I'm dying for a cigarette."