Whenever we leave the house via the front door—usually to take a walk—the cats wait patiently for us. I don’t know how long they’d wait for us before falling asleep, but longer than 20 minutes, anyway. This is what we always come back to: a pair of cats keeping watch out the window, waiting for our return. The only variation comes from Hilbert, who sometimes waits next to the front-door window, hoping he can make an escape when we open the door. He never seems to realize that staring out the window gives the game away.