Programme Dr. Nikolai Bezroukov. There are a lot of computer programs devoted to these events. Generic term for such a programs is prank programs or simply pranks. Pranking does, however, give people a chance to explore their creative and devious sides. At the university environment there are a lot of classical prank stories, like attaching keyboard to a new microwave, with yellow stickers with fake passwords on it.
Pumpkins are also traditional tools for pranks in universities because of their availability.
Stealing and smashing them is just a little bit easier than baking them in a pie. Students often get in a truck, drive around town and collect as many pumpkins as they could. Then they go down main street and throw them out. The police got all pissed off because there were so many of them. Before Halloween and April 1, IS departments should rather keep a watchful eye on happenings.