Fiowe Dwill Edit
In case of a fire, stop drop and roll. Screaming will help confuse the fire, and offering some last-minute sacrifices will please the fire gods. And remember: DO NOT LEAVE THE BUILDING!!!! Firemen are just agents of the fire gods in disguise. Stop them at all costs.
The best thing one can do in this situation is run outside as fast as they can to avoid being trapped in rubble.
Extweme Wetter Edit
There's nothing you can do. Make peace with your god(s) and hope for the best.