These mean pranks will make you laugh harder than they should.
Prince Rupert's Drops are glass objects created by dripping molten glass into cold water. When the glass cools it takes the shape of a droplet with a long, thin tail. It is a kind of toughened glass that has some interesting properties, such as the ability to withstand a blow from a hammer on the bulbous end without breaking, but experiencing explosive disintegration if the tail end is even slightly damaged. Check it out.
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