missing wonton already

I just dropped Wonton off with Karen, who'll be watching him while Jim and I are in Germany, and I miss him already. I keep looking up from packing, as if I'm going to see him poke his head out from behind something that he shouldn't be chewing on. Then I realize he's not here and I won't see his cute little face for two weeks. He's just a dog and I'm getting all misty-eyed, I can't imagine what it would be like with a child. How do you people with kids do this?