Originally Posted by bks90F150
I had a great idea for my senior prank, but it never happened: Freeze a whole lot of cans of shaving cream. When the cans are completely frozen, cut them open with a can opener, then throw the frozen blocks of shaving cream all over the school at night. When the shaving cream un-freezes, there will be mounds and mounds of shaving cream covering everything.
This is actually an urban legend. While the frozen shaving cream will expand, each can only contains enough to roughly fill a mixing bowl:
http://www.cockeyed.com/pranks/frozen/frozen.html