Given that the Darwin Awards still occur annually, unnecessary signs like the ones below may actually be in effect to save people from themselves. But regardless of one's intellectual capacity, does anyone need to be reminded streets are wet when it rains? Based on the dumb signs that litter the world and Internet forums, it would appear that, yes, even the most unnecessary warnings warrant some usage. That being said, the other 99% of the rational-thinking populace gets the chance to laugh at these funny warning signs. The funny signs below exist for some inexplicable reason, and half the fun involves wondering why they exist at all; if you're especially imaginative, you and your friends can theorize what unfortunate situation occurred where someone didn't realize that fire is hot.