I know this may sound like a stupid question but I am the WORST when it comes to any of these mechanisms. How does a mousetrap work? I tried searching this on the Internet but they just say that it is 'spring-loaded'. What does that mean? And most sites simply say that a mousetrap is a device for catching mice, while some others assume that on already knows what it is. If someone can give me a reasonably detailed explanation of its mechanism, that would be helpful. Thanks!