Thankfully, none of my customers regular or infrequent are anywhere near that stupid. They're all between reasonable and awesome.
But I did get a walk-in many, many years ago who wanted me to fix a CPU socket that had come halfway off the motherboard, because they had pulled hard straight up on the CPU by its heat sink, thus with the ZIF socket lever still in the locked position.
Hopefully it'll take a long while before something like that shows up again, but it's inevitable.