As a student had a mind numbingly boring job wire brushing rust off steel poles at an industrial plant. We had to wear those fetching paper hooded boiler suit type things & face masks etc. To relieve the boredom one day we stuffed a suit to make it look like a person, attached gloves & boots etc & hung, with a noose, the “body” from a roof truss. Imagine the look on the foremans face when we rushed in all panicked.
My brother, when he was at agricultural college, claims he had a dump in a Marvel tin, taped the lid up & left the said item on a radiator in a fellow students room over the christmas hols………. My brother became a tree surgeon & the victim is now an evangelist