But, as Jeffrey Sonnenfeld, author of an extensive study of the subject, points out, even successful departing bosses often try to ease the pain of re-entry into normal life by demanding to keep the trappings of their heroic stature: limousines, offices, private jets.

ECONOMIST: Chief executives: Easing the pain of parting | The

Security is handled through the phone or desktop app enabling you to share keys with your family as administrative users, normal users, one-off entry or even scheduled access.

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