Did you know that in the event of a nuclear explosion directly over your head, your AFDB will provide you with valuable microseconds of thinking time that unbeanied orthonoids will not have. It's true!
In the 1950s, photos of nuclear tests taken with Rapatronic cameras revealed an effect dubbed a "rope trick" (bottom of page) where radiant spikes travel down the mooring cables that hold the test tower in place, moving ahead of the nuclear fireball. Dr. John Malik determined that this was caused by the ropes being vaporized by the energy released as light, which was many times greater than the heat from the fireball itself and, of course, traveled much quicker. Malik found that if he wrapped the cables in aluminum foil, no spikes were formed.
With an AFDB, you can rest assured that the light from a nuclear explosion won't vaporize your head. Depending on how far away from the blast you are, this may give you enough time to outrun the fireball and leap to safety in cinematic slow motion, while all those beanie-scoffers are left behind looking like lit matchsticks.
Remember: only the paranoid and cockroaches will survive.