The following Outlook accessory functionality issue example here is unrealistic, (more) Not. Outlook data items (e.g. Library Folder – Notes, Letters, Classic Entries and etc.) have what’s referred to as Private option (‘Private’ tab), securing handling from others (clarification appears by hoovering with the mouse cursor over the tab itself). But the former also have an Attach Item tab (Not the ‘Attach File’ tab), allowing the attachment of (you’ll never guess) the Item itself. Indeed, besides inserting formerly mentioned Outlook entries (whatever type), the very same Item (trial-ed with a saved Entry) can be attached within the now opened … (you’ve guessed it) Item itself. With the Private tab activated and a Restricted User Handling Attached Item (let’s call it the Attaching Itself Item tab) you wouldn’t care of listing possible consequential security breachings if you dare to click open the Attaching Itself, but you can only imagine it would be something of a Mirror-in-Mirror, or in Outlook terms more of an infinite Look Out Not (Look In, Look In, Look In …) loop ‘effect’. Finally, watch out Outlook-ers for system loops.