Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
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Hugh Jackman walked around Comic Con wearing his full Wolverine costume and nobody noticed.
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There is a town in Norway called Hell, and it freezes over almost every winter.
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In Chinese, the KFC slogan "finger lickin' good" comes out as "eat your fingers off".
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In 1974, prankster Porky Bickar was so into April Fools, he flew hundreds of tires into a dormant volcano in Alaska and set them on fire - fooling the local populace and coast guard into thinking the volcano was active.
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If you hold farts in during the day, they'll just come out when you sleep.
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There's a café in France which charges €7 for a coffee to rude customers and €1.40 to people who talk politely to staff.
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In 2005, a man named Ronald MacDonald robbed Wendy's.
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