boonality, Nosy Spouse - you can't have a nosy spouse, if you're not married.
I was by no means referring to anyone specific, sorry but you are not everyone.
Children - See above.
Again, not being specific here.
Public Computer - Usually blocked from user modifications. They usually require Administrator privileges.
Yes but the administrator may need to set policy locally and this is one way to do so.
Small business environment - oops you're fired.
This only holds up if you have a specifically written acceptable use policy, and most likely a laywer too.
So uh, what was the point of your reply? All I gathered is that you figured I was directly speaking about how you would use this feature? Your not even the OP, nor are you the person asking why someone would want to do this.