Yep, I figured it out after I posted that question and then tested it. I decided not to embed to see the difference. My learning curve is long, but I tend to get there eventually!
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 .