1. A method to determine a status of a person, comprising the steps of: receiving an indication from a first sensor, of a first orientation of a first body part of the person relative to a predetermined direction; receiving an indication from a second sensor, of a second orientation of a second body part of the person relative to the predetermined direction, wherein the second body part is separately moveable from the first body part; inferring, by use of a processor, an orientation of the person from the indication from the first sensor of the first orientation and the indication from the second sensor of the second orientation; and determining, by use of a processor, the status of the person from an allowability of the inferred orientation of the person.