It feels to me, without any external substantiation and without knowing anything about shibboleth, that "insult to father's stones" might refer to an error rais

It feels to me, without any external substantiation and without knowing anything about shibboleth, that "insult to father's stones" might refer to an error raised by calling code or a parent process, in protest of a condition caused by called code or a child process. Stones could be an overly literal translation of "steps." So something about the child process "insulting" the execution (steps) of the parent? Oh and someone downvoted that. I love this site and all you wonderful people.