Should you hear the drumming of hoofs outside, when you look out of the window you don't expect to see a herd of Zebra.

I feel that when the lights go out you really should not be jumping to the conclusion that it is a nuclear attack. It the winter in Scotland it is much, much more likely to be a simple supply failure.

We do ourselves a disservice by preparing for events that are unlikely to happen, whilst ignoring the much more likely but much smaller and unexciting happenings, e.g. looking for a torch in the dark.