LOL, good rule!
I've noticed that they are like babies....they move a lot faster than you think they should/could, and are always showing up in one spot, when you think they ought to be in another! But in this case...there's not even the rustling diaper to alert you.

I really need to do bells on collars or something now, with two.
Last night there was a Red Alert when we couldn't find the puppy! I even, morbidly

, went and checked in the washing machine, in case she got scooped up with some blankets.
The whole time she was "right at our feet", sleeping under the coffee table!