I like the statement "Also, provide your name, phone number and e-mail address as well as a contact to independently verify the information--just our way of checking up on a few overzealous dads."
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 .