Hope For The Best, Prepare For The 50 Megaton Blast

(I work in an electronics & gas appliance store. A customer is inquiring about fireplaces.)

Customer: “I would like a power flue, but if the electricity cuts out I’ll be left with no heating!”

Supervisor: “We’re pretty lucky here, though. The electricity very rarely cuts out.”

Customer: “But… what if they drop a bomb?!”

Supervisor: “Well, um… we’d all be dead, so it wouldn’t matter anyway.”

Customer: “No, not necessarily. Unfortunately, some of us will survive, and we will be left with no heating!”

Supervisor: “How… unfortunate?”