The Dallas Autorama was a couple of weeks ago, and the Lone Star Corvette Club always has a display. Two years ago, I showed my ‘60 and ‘64 restomod convertibles. This year the coordinator wanted my ‘19 ZR1 after I told him it was a 1 of 1 car. I won first in my class, but there were so many classes, I don’t know who I was up against!!
The Lone Star display -

Leading up to the show, I did a full detail of the car, including cleaning and conditioning all the leather and putting it on the 4-post lift and cleaning the undercarriage. Prior to that, I drug out my QuickJack to take all the wheels off and detail the inner barrels and the wheel wells.

I was nearly done with this process but hadn’t yet put the wheels back on the passenger side. I had partially lowered the QuickJacks to make getting the wheels back on easier, when Lori came into the garage saying she was ready to go to dinner. Rather than raising the QuickJacks back to full height and engaging the safety locks, or, better yet, delaying our departure to remount the wheels, I decided to leave the jacks at mid-height. You can probably guess where this is going.
While at dinner, I get a call from the alarm company telling me one of the window sensors in the garage has tripped. I asked which zone, and since we had disabled all the window sensors, I cancelled the alarm. Being curious, I looked up the tripped zone and it was the glass break sensor for the portion of the garage I was working on the ZR1 in. Now my mind is racing throughout the rest of dinner and the drive home - what if what the sensor “heard” was the ZR1 slamming into the ground due to jack failure and the carbon ceramic rotors shattering??
What I walked into was this -

Yes, the passenger side jack was fully collapsed. Thankfully, the rotors were undamaged. I think what the sensor heard was the hydraulic fluid from that one side being forced back into the pump unit.
The bad part of all of this was that the pump would not re-raise the passenger side jack - it would only raise the driver side further. And, I couldn’t get any of my jacks under the front of the car. I was finally able to get a jack under the rear control arms and raise the car enough to get the rear wheel back on. With that, I had just enough room slide the passenger side QuickJack out of the way and get my lowest profile jack under the front jacking point and raise the car to get the front wheel back on.
Once I got all that sorted out, the QuickJack reverted to working properly. Why it wouldn’t raise the passenger side earlier remains a conundrum.
Note to self - don’t leave the QuickJacks unattended in the raised position without the safety rod engaged!! Almost a very expensive lesson learned!!