Senior prank

A senior prank is a type of organized prank pulled by the senior class of a school, college, or university to cause chaos throughout the institution. The pranks are usually carried out at the end of the senior school year as a going away mark on the school, and in some cases have become something of a tradition. This is known as Muck-up day in Australia, the United Kingdom and some other countries.

The pranks are often planned out very well before they are actually done in order to work out details such as not being caught or blamed for the disruption they cause. Often these are harmless and more often hilarious pranks, but sometimes the pranks can be taken too far, causing serious problems such as damage to school property and resulting in arrests and large fines.

The practice has been banned within some schools in the United States, and replaced with formal leaving activities to ensure students do not commit crimes or vandalise school or other property.

In the United Kingdom, "muck-up days" are common in independent schools and state schools, and members of staff (particularly grounds staff and porters) often unofficially assist the perpetrators. Examples of such traditions include stealing the school's clocks as make-shift trophies or removing styluses for interactive whiteboards.

In Australia, muck-up days are a common practice in many schools, although their nature has evolved over the years such that activities are usually pre-approved by staff (e.g., a year coordinator) and may not harm staff, students nor property. Notable pranks have been dyeing the swimming pool purple and bringing pigs to school.

Common senior pranks include but are not limited to: adopting unusual or fancy dress, using water pistols, stink bombs, water bombs or shaving cream on each other or on teachers, issuing fake announcements over the public address system, starting barbecues in unusual places, imposing parking levies on the staff car park, issuing staff with detentions or uniform infringements, putting small polystyrene balls in the air conditioning, thus making it 'snow' in the building, chalk graffiti, filling elevators with hay or spreading bird seed in the staff parking lot to attract birds that then deconstruct the cars, setting up tents and making it appear that the seniors had camped overnight on school grounds, or having a party in a faculty/underclassmen parking lot to confuse the parking situation. At some schools that ordinarily have strict uniform policies, teachers turn up in full school uniform on the day, and the students in free dress. Some schools announce a day off for the rest of the school, while others conduct an assembly to formally farewell the final-year students during the day's events.

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