Here's a video from ABC 7 News KGO-TV San Francisco, CA telling the story of a cannonball experiment not going as planned conducted by the Discovery Channel show "MythBusters". According to the report, the television show was testing to see if other materials fired out of a cannon would be the same as firing a cannonball out of a cannon. According to the ABC 7 News report, the cannonball missed its target, hit a house, bounced off the road, hit a roof of another house and then landed inside a minivan. Nobody was hurt. Check out the video for the full story.