It has been revealed that a rock found in China can inhale a cigarette in under five minutes.
Mystery surrounds the nicotine-addicted rock, which was put on show by collector Luo Yuanshui, from Longyan in southeast China's Fujian Province.
Cigarettes, with variations for length and brand, take around six minutes to burn down naturally if left unsmoked, the Daily Mail reported.
Luo said that his puffing pebble knocks an incredible minute off that time, somehow.
He said that he found the 2.2kg rock in the mountains of Shangyou.
Naturally, his first instinct was to find a hole and pop one of his cigarettes in to see if it would smoke it. He was amazed to discover it did.
The oddity is an unidentified red-coloured rock and is fitted with an instructional plaque and a handy ashtray so the marble-boro can neatly indulge in its vice.