I'm posting this just because I figure if it makes one person think more about safety it's worth it. I was jacking the frontend up to remove the front wheels and tires a couple of nights ago and was in a hurry. I figured I didn't need to mess with jack stands as I "wouldn't be under the car". I assume, after the fact, that I didn't have the jack back far enough under the k-frame. A couple of minutes after pulling the second wheel off, while my back is to the car, I hear and feel a crash. I initially thought that the cylinder on the jack had failed but then realized that the jack had squirted out the front of the k-frame. I had the cross beam on the jack so it caught the car right under the radiator, smashing the bottom of the core support and separating one bracket from the top tank. At least I was nowhere near the car when it happened but it was definitely very eye-opening. I'm sure like most of you, I've been tinkering with cars most of my life and knew better. The damage to the car could have been much worse as I fortunately had the hood open or the radiator would have possibly bent the front of the hood. It also didn't seem to damage anything but the very bottom of the core support and I had 2 of the Rallye wheels under the car towards the rear and they were not even touched. I am curious what would have happened if I wasn't using the crossbeam as the crank pulley would have caught the car instead of the core support. Bent or broken crank? Again, I know we all know better but I also know we all get in a hurry at times. Stay safe.