Huh? Have you ever worked on a shared document before? To an end-user, the directory tree is a system of record. Many types of files need to "freeze" at a cert

Huh? Have you ever worked on a shared document before? To an end-user, the directory tree is a system of record. Many types of files need to "freeze" at a certain point in time -- say a letter that needs to be crafted by multiple people, or a budget worksheet. In the case of the budget sheet, I don't mind if you copy the file and change some numbers to figure things out -- you're on the Team, after all. But I may mind if you decide to modify a file after we have a consensus that it is "done".