I have taken on-call rotations with no training on the systems I'd be supporting. Even worse, I built and ran the human process that systematically put other d

I have taken on-call rotations with no training on the systems I'd be supporting. Even worse, I built and ran the human process that systematically put other devs into that exact same situation. We got good results from the process (as compared to not having the process), but it's obviously not as good as it could possibly be.