Answer:
People are hired to get rid of me. I'm often hiding under your bed. In time I'll always return you see. Bite me and you're surely dead.
I can move even when you are still. I can be one or many.
It holds no blessings in disguise. Its rhymes are aimed at your demise, it's cast only to ruin, Whatever you are doin'.
Craig died in Florida. Shortly after, Tracy died at sea. Nobody mourned, In fact, everyone was absolutely delighted. Why?
What has a big mouth, yet never speaks?
What did the piece of wood say when he saw the screwdriver and screws approaching?