Is there a way to automatically populate the 'Owner' attribute of a device?

Ideally I'd like something like a Custom Data Form silent collection or a bundle that runs something in background so that we can populate this field with the current/last user of the machine... We want to use the 'Owner' attribute as this is visible on the Summary of a device and would be helpful for Service Desk, etc.

Before someone states the obvious we only use ZCM in device management mode i.e. we do not have User Management enabled, so users don't authenticate to ZCM and we can't use Primary User, etc. etc.