Darkness is good... If someone was ransacking your apartment/work they'd need light. In places you wouldn't, like the server closets. A timeout would be good -

Darkness is good... If someone was ransacking your apartment/work they'd need light. In places you wouldn't, like the server closets. A timeout would be good - like the backup drive won't appear until the lights have been off for six hours. Name the server 'mouse' or something appropriately timid.