concept of self-isolation from viruses and diseases. hopper from obbedience. man hides in a hole. vietnam's cu chi tunnels for

apocalypse bunker burrow chi close coronavirus cu days disguise doomsday end epidemic exit ground hide hideaway hideout hiding hole home hopper house hutch insulation isolation lockdown lurk manhole of pandemic panic pit place quarantine refuge safe saigon seclusion selfisolation shelter silo skulk subsurface subterranean subway time tunnel under underground vietcong vietnam virus war