I have also a weird story to tell that a human did and it is as crazy as this. It happen in 2019 so no LLMs at all.

A person that was hired as an expert in our startup spent more than one week full time working on implementing his solution to the problem we were having. I checked the code after one week to see the progress and was curious how they are implementing an already crazy sounding idea. I found that the whole week was spent re-implementing in python, python's built-in "float" function. That was it, the whole code was just that.

Our problem was related to financial services and their implementation of "float" was not even correct.