It seems some students at Xavier went over-the-top in their end of school celebrations, ties used as G-strings, with one student injured, food fights on trams, jumping on cars, firecrackers let off at Balaclava Station, and all year 12 classes cancelled. (Some newspaper reports say the entire year level was suspended, but the principal was on radio on Wednesday morning saying this wasn’t strictly true.)
I don’t think it’s really that difficult to come up with pranks that are highly amusing, yet don’t injure anybody and cause no permanent damage to anything. Longtime readers may recall I wrote about the Year 12 prank I participated in, dumping loads of bean bag beans around the school hall… which when we were caught, resulted in us having to vaccuum them up.
Other stunts I saw and heard about from my time at high school in the 80s were using traffic cones to divert traffic through the school; various banners flown from nearby buildings; a fake school newsletter issued to all classes (I still have my copy somewhere); shaving cream liberally applied to buildings, clothes and on cars; and apparently once at Melbourne Grammar a teacher’s car was disassembled, moved to an upstairs room and put together again. Though that last one may be merely urban legend.
All it takes is a little imagination, and a wish to amuse, rather than annoy.