When someone becomes disabled either via long hospitalization, dementia, etc. it becomes necessary for their caregiver, spouse, Power of Attorney holder, etc. to access their passwords so that they can manage accounts for the disabled person. This feature would allow the user to:

1) Set a rule for to specify which users are allowed to request such access
2) Set a time value for how many days after a request is issued for it to be auto-approved
3) Once a request is sent, notify the user that a request to access all passwords has been generated
3) Once a request is approved (either by the user or by auto rule), the requester has access to all passwords (basically all vaults become shared with the requester)
4) Ability for the user to unshare again if they have recovered from say a long hospital stay