Taking a phone call today:
"I have two CCTV systems that keep stopping on their own"
I check the logs as the software explicitly logs why it stopped.
"Someone pressed the 'stop' button"
"Well, why doesn't it say that?"
"It does, there, where it says 'stopped monitoring'"
"Let me test... Well, why does this keep happening to two different machines in two different places?"
"Because two different people keep pressing 'Stop'!"
I resisted saying "two different idiots", but some people just can't see the obvious!