We tried successfully for a while keeping him in the kitchen. It was small enough that she didn't want to be confined there with whatever mess he could make, and easily cleanable if an accident occured. However, within a few weeks he figured out how to somehow leap over the gates without toppeling them over- I'm imagining some sort of dear like elegant bound...
Next we tried leaving him in the Office- a room with a door. Here's what happened the very first day:
So for now he is in the crate all day- which I'm sure he doesn't enjoy but we are not sure what to try next.