Do you prep for any sort of weird scenarios?

Am in a hotel near an airport and I got to thinking the "what if game".
"What if an airliner crashed into a nuclear power plant?"
"What if a huge damn was made with faulty concrete and it gave away suddenly?"
"What if a huge power outage caused meyhem that overwhelms fire services and my house catches of fire?"

We try to keep our heads planted in more practical scenarios but on occasion maybe we let our mind wander to get creative (thus improving our planning). Heck, maybe there's just some weird situation in your area that makes an "odd scenario" more likely.