A woman was standing by a canal, looking on in awe as an old tugboat captain skilfully docked his boat. She was impressed that such an old man could still do such a tough job.
She decided to wait until the captain disembarked. As he did, she asked him: "Captain, what is your secret to leading such a long and productive life?".
"Well," he replied. "I would have to say it's because I smoke three packs of cigarettes a day, drink a case of whisky every week, eat a lot of fatty foods and I never exercise."
"Wow, that's amazing," the woman exclaimed. "Exactly how old are you?.
"31," he answered.
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