In this case until I started asking hard questions about how do I see what my code is doing (remember I was new and he was experienced - the correct assumption is my code was bad) he wouldn't have known there was a bug. Nothing was working, but only because software wasn't setting the correct values. Only after we dug in did we realize that the verification was destructive, so my checking that the settings were correct (which passed) reset the settings, and it didn't work in test. Or something like that - this was nearly 30 years ago, if you think I (or anyone) remembers details perfectly that long you have bigger problems than my memory.

Wasn't trying to argue just chatting about wfh