Answer:
You saw me where I never was and where I could not be. And yet within that very place, my face you often see.
Round as a button, deep as a well. If you want me to talk, you must first pull my tail.
I can ruin your day, or darken your life. And while I'm expected, I'm never alright. I'm bad for business, and worse for your hair. Wherever I am, there's something not there.
What is the heart of many risks, has a heart, but is not a living being?
When you stop and look, you can always see me. If you try to touch, you cannot feel me. I cannot move, but as you near me, I will move away from you.
What never gets any wetter no matter how hard it rains?