When I was younger, I used to have a little Kellogg's Corn Flakes battery operated alarm clock. When it went off, the realistic sound of a rooster crowing jolted me awake. My father used to borrow it from time to time if he was going to have friends riding in the back seat of his car. He would put the clock in the trunk and set it to go off while they were riding in the car. When the friends questioned it, he would act all annoyed. "Oh damn, the rooster is loose in the trunk again".