Heard : CooCoo Clock

By the way, how does one spell coo coo clock? Is it with a C or a K?
Anyway, I was away this week to Boston for another conference and when I got back, Christine told me the Coo Coo Clock we bought in Switzerland had stopped working.

Christine "The Coo Coo Clock stopped working."
Kirk "Oh, really? What happened."
Christine "I dunno, I wound it up;pulled the weights up but it won't work right. I don't know what's wrong with it."
Kirk "Did you restart the pendulum?"
Christine "Oh, no, I didn't do that. That would probably help wouldn't it."