I want to thank jmardy for posting the size and offset of his wheels. There are lots of threads on wheels but none of them provide specific information like this one does.
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 .