We have the disappearing cat routine from time to time.
Usually on Christmas day, or some other really convenient time.

I have found them in 3 inch cracks behind boxes in closets, under furniture, I was sure they couldn't fit, up in the gauze under the box spring, in pillow cases with the pillow.

I have walked into the foster's room and sworn: there is no cat in here!

I am training myself not to panic.