Answer:
People walk in and out of me. They push me and I follow. When they walk out on me I close up and I stay waiting for the next person to walk into my life when I have a more open mind
Tear me off and scratch my head what once red is now black.
A dragon's tooth in a mortal's hand, I kill, I maim, I divide the land.
The Titanic is still here.
I am a daily ritual involving using a metal tool on the body
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.