Answer:
What do people want the least on their hands?
The man who made it didn't need it. The man who bought it didn't use it. The man who used it didn't want it.
Many hear me, but no one sees me, and I only speak when spoken to
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.
This thing runs but cannot walk, sometimes sings but never talks. Lacks arms, has hands; lacks a head but has a face.
When is it bad luck to see a black cat?