Alarm-Buttons and panic rooms are not so uncommon and often installed in houses of much-more low-key persons then Kim Schmitz. A family friend purchased a house

Alarm-Buttons and panic rooms are not so uncommon and often installed in houses of much-more low-key persons then Kim Schmitz. A family friend purchased a house (not a mansion, just a bigger house in a suburban neighborhood) here in germany that was formally owned by a CEO of a mid-sized tech company. And there is a panic button in every room, as well as a hidden room. Why should such a system be uncommon in, from what I remember, the biggest mansion in NZ? I guess it was already there when he bought the place.