Nineteen Hours of Nothing
My NVR reported a storage failure during the same half hour I had unsupervised houseguests in the building. By that evening it claimed storage was fine and showed no recordings at all.
Nothing malicious happened. It took an evening of forensics to be able to say that, and the answer is the least interesting part of this. What’s worth writing down is how many of the intermediate answers were wrong, and how confidently the tooling handed them over.