At my college, a guy threw a water balloon from about 5 floor up at a guy sunbathing, and it hit him in the stomach without breaking and hurt a lot. We also had a narrow gap in out stairwell rails, and after a drunk tried to drop a beer can all the way down about 10 floor, we tried doing it more carefully, finding out how much liquid could be in a can before it burst (about 2/3). I still have a funny looking Rolling Rock can with a big bulge on the bottom.
At my college, a guy threw a water balloon from about 5 floor up at a guy sunbathing, and it hit him in the stomach without breaking and hurt a lot. We also had a narrow gap in out stairwell rails, and after a drunk tried to drop a beer can all the way down about 10 floor, we tried doing it more carefully, finding out how much liquid could be in a can before it burst (about 2/3). I still have a funny looking Rolling Rock can with a big bulge on the bottom.