As someone who has to use planet fitness, how the fuck can you not "rerack" in one of those things??? It's basically twist the bar forward.  That's it. The latches catch and you're safe.  I mean, the bar doesn't even go all the way to the ground.  I use those to test my 1 rep maxes because, again, it's a fucking SAFETY bar.  If you can't push the weight, you just twist and catch.  If you drop a bar on your chest, it's because you're an idiot.