uhm..shelter?
They have this fancy "security system", a bunch of useless cameras and a door which slowly but steadily closes as if they're now completely secure.
Meanwhile the house is covered by glass windows which only needed a bullet or rock to break into pieces.
Oh and someone(Billy Loomis or whatever the whore daughter's boyfriend's name was) had managed to sneak in during the day because the freaking door was open. HAHAHA!!!
A panic room, safe room, bomb shelter, storm shelter.
These are the moments these type of structures are built for.
Why the hell would the rich spend these 8 hours in anything but a small shelter or panic room?