I’ve worked a few places that clearly stated: * we are not mission critical for our customers. Let’s not engineer for disaster scenarios when our customers rea

I’ve worked a few places that clearly stated: * we are not mission critical for our customers. Let’s not engineer for disaster scenarios when our customers really won’t care if we have a very very rare outage. * our customers primarily used our services during US business hours. If we needed risky maintenance, we’d just do it a bit early or a bit la tree in the day.