Who would like 'private collections'

Question

In working with Lightroom with ALL my collections in the same catalog I sorely need the ability to assign viewing privileges with a simple password. The idea is to tag collections or keywords as private, restricting even their names to be seen. That means I don't have to worry about clients (who I often have looking through certain collections) stumble elsewhere.
Anyone else up for this?

Answer 1

on top of private concern, this feature would be very useful in many other cases:
Indeed sometime I just want some photos to get out of my view not because I do not want to show them to anybody, but because they pollute my catalog (though I want to be able to find them in the catalog as it helps me access them much faster than by the windows explorer and edit them if needed or reuse them,...)
example:
-I import my raws as DNG, but I keep my raws as well so I would like to hide them I do not need to view them all the time.
-I make (or made before lr came to the world) destructive edition, and kept a copy of the original. same problem here I want them both in the catalog but I do not need anymore to view the originals all the time
-I do panorama or HDR, I do not need the photos that were used to that purpose, to appear in the catalog all the time
-I create videos using time step photos , I do not want all those photos to appear all the time.
-And with LR 4 you can create soft proof copies, I do not want them to appear in the catalog all the time
You could tell me to stack photos, and I do that, but I end up with all of my photos being stacked, and I need to unstack to see why they were stacked, and imagine what the stack looks like if I have a multiple-softproofed destructively edited HDR, panorama, with the dngs and the raws images... Ok I am making up the worst possible case. But you get the idea : the stack does not mean anything more.
regards