Provide a place for notes when unmanaging a node

Occasionally we unmanage one or more nodes for a period of time--maintenance, replacement of hardware, upgrades, etc.

But sometimes we unmanage for other reasons--maybe a UPS is alarming that it needs new batteries, and we need time to order them and schedule their replacement.  Currently we typically unmanage a UPS for a month in this case, and when a month passes and the new alerts show up again, we may--or may not--remember who unmanaged it and why.

This becomes a greater problem when someone unmanages a node for any unshared reason and then leaves the company.

I'd like to see a place provided in the "Unmanage Node" window that offers the ability to provide / track more information about the "unmanagement":

1. Space for WHY the node was unmanaged.
2. A pre-populated and unchangeable window that displays who unmanaged it.
3. A pre-populated and unchangeable window showing the time stamp of the unmanagement.
4. History of that node's unmanagement.  For example, if any node (let's pick on a UPS) was unmanaged 30 days ago, and it was also unmanaged 30 days before that, and unmanaged another 30 days earlier--that's important information, and should be present when clicking on the node, when unmanaging it again.  And it should be available in some Report on nodes unmanaged in the last X days.

What say you, Thwack Folks?  Yay?  Or Nay?