I don't jump to any conclusion, but assume that a logical explanation exists. I'll often check to see if similar events have occurred in the past. When the big blackout occurred in the northeast US about 7 years ago, a lot of people were freaking out thinking that it was a terrorist attack. I vaguely recalled hearing about some large blackouts in the 1970s, so I looked it up and confirmed that such blackouts had occurred before.
I am of the opinion that a supernatural explanation is, by definition, a lesser likely cause than a natural explanation.
I fall back on the scientific explanation: "Shit happens."
Really though, the expectation of some people that they have to have a quick answer to a question is the real problem here. The thing to learn though is when you don't have one, it's not necessary to make one up; at least, not if you're an adult.