In Sedalia, MO this last week or so--13 of the public high school baseball players were suspended for vandalizing the baseball field that the (much smaller) private high school team played on....
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 .