A prank is a fun trick. 

A practical joke is a fun trick. 
One prankster might hang a bucket of water. The water falls when a door opens! 
Some people play tricks on special days. They might do this on April Fools' Day.
Students often play big tricks at school. They might even hang bikes high up! 
Most jokes are meant to make people laugh. They help friends feel close and happy.
A practical joke is a physical trick. 

Pranksters use many objects for their tricks. They might use whoopee cushions or stink bombs. Some people wrap a desk in foil. Others fill a room with balloons. Students often play large pranks at school. These are sometimes called hacks. 
Some jokes can last a long time. A painter once gave a woman a large turtle. He kept swapping it for bigger turtles. Later, he gave her smaller ones. This story was in a book by Roald Dahl. Many people play jokes on April Fools' Day. This is a special day for fun tricks.
A practical joke is a physical trick played on others. 

Pranksters use many different objects to create their surprises. They might use whoopee cushions or even stink bombs. Some people use clear tape or fake vomit for a gag. A joker might hang a bucket of water above a door. They can use pulleys to make the water fall. This happens when the victim opens the door. 
Many people have written about the art of the prank. H. Allen Smith wrote a book in 1953 called The Compleat Practical Joker. This book was a best seller in the United States and Japan. Another writer named Moira Marsh also wrote a volume about them. She found that men in the US play these gags more often. 
Students often play very large and famous pranks. At the Massachusetts Institute of Technology, these are called hacks. 
Some jokes are stories that people remember for years. A painter named Waldo Peirce played a long trick in Paris. 
A practical joke, often called a prank, is a physical trick played on a person. 
A practical joke is considered "practical" because it involves a physical action. This is different from a joke that is only verbal or written. A prankster might use mechanical setups to create a surprise. For example, a joker could use pulleys to hang a bucket of water above a doorway. When the victim opens the door, the bucket tips and drenches them. 
Practical jokes can vary greatly in their duration and setting. They are not always short-lived events. Some pranks can last for a very long time. They often take place in social settings like offices to surprise co-workers. 
Literature and research have documented the history of these social interactions. In 1953, the American humorist H. Allen Smith published a book titled "The Compleat Practical Joker." This 320-page book became a best seller in both the United States and Japan. Another researcher, Moira Marsh, also wrote a volume dedicated to the subject. Marsh's research indicated that in the United States, males tend to perpetrate these gags more frequently than females. Additionally, many Western nations have specific traditions for pranks. These include celebrations on April Fools' Day and Mischief Night.
University students have a very long and famous association with pranks. At the Massachusetts Institute of Technology, these elaborate pranks are known as "hacks." 

Some pranks involve the theft or misuse of public property. A famous example involves the theft of traffic cones by students in the United Kingdom. This issue became so widespread in the 1990s that it was discussed in parliament. In some cases, the misuse of these cones in Scotland led to serious physical injury. The situation became so common that the Fife Constabulary declared a "traffic cone amnesty" in 2002. This allowed students from the University of St Andrews to return stolen cones without fear of being prosecuted. 
Practical jokes also appear in famous stories and modern media. The playwright Charles MacArthur recalled a story about the painter Waldo Peirce. In 1920s Paris, Peirce gave a concierge a large turtle as a gift. He then surreptitiously substituted it with larger and larger turtles to delight her. Later, he began replacing them with smaller turtles, which caused her great distress. This story served as the basis for Roald Dahl's book, "Esio Trot." Today, groups like Trollstation record their pranks and upload them to YouTube. These modern versions show how technology and media continue to shape the way people share humor and mischief.
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