re: I still do that...
...whenever I get the chance. Toured a deep open pit moly mine in Mexico. Big, car size rocks routinely fell off the headwall (~600 feet high) into the muddy bottom of the pit. Really cool craters were all over the place, but we didn't stay there long!
Whenever I shovel snow off the deck, I chuck big chunks into the yard below and make craters in the snow. Just pushing a shovel through the snow displays properties of a fold-thrust belt.