It seems that Dan has hit upon a new form of sensory perception, particular to the computer age! He coined the term ‘Cliposeption’ for “the sense that there’s something on the clipboard.”
Maybe we can add on ‘Clipophobia’ to that? The fear that you just overwrote something important in the clipboard?
There is a related fear, which I get when I use Linux/UNIX, that of selecting something (usually the URL in the browser’s address bar) to delete it and paste in where I want to go, only to realize that I just over wrote my clipboard. ‘Selectoparanoia’?
I can add a phobia on to that as well: several of my clients refuse to remove Apple’s default items from their Dock. One person had been using their machine for almost 2 years, and when I showed them that those programs they never used could be removed (and replaced easily) so they could have a dozen fewer items in their Dock they got visibly upset.