Ah Boy saw a weak old man smoking on the bench in the park. As the old man take a puff, he coughed heavily.
Taking pity on the old man, Ah Boy sat next to the old man and said,
"Uncle, smoking is bad for your health, if you stop smoking u can live at least up to 70 years old."
The old man upon hearing this began to laugh loudly.
Ah Boy was puzzled, "Why are you laughing?"
The old man looked at Ah Boy and said, "I'm 85 years old."
