It’s been a long-standing tradition that the warning illustrations and information found inside the manuals of Japanese electronics has to be funny. I believe it’s actually Japanese law.
Nintendo has not let us down, as these scans from the Japanese Wii users manual so hilariously illustrate. Check them out and no matter what you do, don’t stick a four leaf clover into the back of your Wii. That’s almost as stupid and dangerous as chewing on the sensor bar’s cord!