When you and your party are walking in a horizontal line, thereby using the entire sidewalk, the person(s) walking into oncoming traffic should move to either the front or back of your little group before I knock their butt down because you are in my way.
I do not have to move off the sidewalk to accomodate your conversation about... whatever it was you were talking about.
Hope your shoulder is OK. Mine is still a little sore. But... you should have moved.