I once set up three steel plates welded to rebar about three feet above the ground out at the cabin. I set a timer for X minutes and then would go about my business. When the timer would go off I would take two shots at each plate with my 1911 45acp. The last shot bounced back and buried itself in the ground 2" from my left big toe. I was a mile from the road and no cell phones back then. That was the end of that exercise.