Back when there were still things like 911 parts cars, I acquired and parted out 13 of them. All of them would be saved today, then not so much. As
previously loved cars, each one had major issues, many times from dereliction or a sale on drywall screws at Home Depot, which many had holding things together.
I started to restore a '71 decklid grille today. If you aren't familiar with them, there are 5 bars, upper and lower, that are riveted together sandwiching the black mesh. Left, center and right bars also have captive bolts, invisible from the top, that hold the grille to the decklid. One must have failed in some way so a previous owner, who knows when, drilled a hole through the top bar, countersunk it, and then shoved this screw in place. Both bottom corners. Those bars are now toast and rib #13 is probably junk too but I'll try to save it. The worst part is they bent the top and bottom bars to get the bolt out but then drilled the hole for the new screw which makes no sense at all. And then there's the screw head... Who does stuff like this?
There really should be some sort of test you have to take, and pass, before you can own certain cars.