I couldn't help but include this video. I got a kick out of it. Zach just happened to sneeze after he took a drink and Cade laughed. So Zach kept doing it and Cade kept laughing. I took this video after it had already been going on for several minutes. It finally occurred to me they weren't going to stop, so I went and grabbed the camera. When all the noise pauses before Zach "sneezes" it is because Zach is getting a drink. He thought he had to take a drink first or it wouldn't be funny. I didn't tell him he could just say "achoo." It continued for a few minutes after I shot the video, too.