Wha.
Two weeks ago, while in the middle of a Storage assessment for a client, they had a DC outage thanks to a 15 year old UPS that didn't come out of bypass mode during maintenance. BTW, WTF does UPS maintenance at 1530 on a Thursday afternoon?
Said assessment and planned remediation turned into an all nighter, and subsequent all weekender, of helping them with recovery activities. Thankfully, the modern Storage controller is pretty good about protecting data during events like these. They did discover additional deficiencies in the environment (AD dependencies on a dead DC) so they learned many things in the end. Not the least of which is that they need to move out to a Tier III/IV colo facility and ditch their shitty in-house DC.
I booked 85+ hours over 6 days and had travel on each end. Thu-Fri was an all nighter until 0900. Long days after and Sunday was 0400-2300