There is some good news, and I saw a documentary on TV about this: The Elephant Sanctuary of Hohenwald, Tennessee is a natural-habitat refuge where sick, old and needy elephants can once again walk the Earth in peace.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .