Not every time you see puddles, droplets, or mists is it due to the weather. You have to look for the signs such as wetness under a tree where it would normally not have wetness. Puddles that take a long time to evaporate as opposed to others. Mists but not out in the streets or if you walk with a flashlight for a short range. When your oblivious you will never see it coming if it ever does. These tactics have been used for a very long time and no one looks for the signs should they ever come. You will always attribute it to nature or whatever your DNA is, Do Not Ask.