I don't have any kids of my own yet, but I think being the mother of two, two year old cats is giving me the training I need.
I seriously only want five minutes to myself...five minutes without anyone typing on the computer keyboard...five minutes without anyone dipping their paw into my drink...five minutes without having to rescue anyone from the bookshelf they now cannot get down from.
The minute I shut ANY door there are poor pitiful cries and little black paws reaching under the door. "PLEASE MOM! Please let me in! I need you NOW! I just love you is all."
(I may remember being this obnoxious to my mom when I was little. Anytime she was in the bathroom or was taking a rest..."Mom? Mommy? Are you in there? Are you sleeping? Is dinner ready yet?")