I am planning to melt some Jello, to see whether, when it cools, it firms back up again. Why? Because I will have some spare Jello, after I make a recipe, and I always wondered if it would.
I once threw a four-cushion couch off a third-story back porch (with a friend of mine), giving it a lot of loft, and accompanied by animalistic screams, just to see what would happen. It made a GREAT dent in the yard, but broke into far fewer pieces than we hoped for.
What have you done, just to see what would happen?