He's 8, his school is a 15 minute walk from our house, a 20 minute drive from DH's work and anywhere from about 40 mins to an hour (or more depending on the secenario) drive from my office. All 4 locations are between 2 nuke plants, and near a major highway and national railway.

His top scenarios are: minor accidents, Mom or Dad missing an after school pick-up because of weather/accidents, the potential of a train derailment/chemical spill on the highway, power failures, snow storms, and possibly a nuclear accident.