Add end users, stir vigorously
Let's say there's a network folder named S:\Department\Project and it contains Excel, Word and Powerpoint files...
User1 realises that if they open that folder in Excel, they only see Excel files. If they open it in Word they only see Word files, etc.
User1 also realises that if they change the filter to "All Files" they can see (obviously) all files and mentions this to User2.
User2 does this and then gets confused. So because they don't want to see Excel files when they're opening files in Word, they DELETE the Excel files.
User3 then logs a ticket asking where the Excel files have gone...
Biting the hand that feeds IT
