Orphaned Calendar Entries

I have a user that has three Orphaned calendar entries. When I attempt to delete to document or open the document. I get a message indicating that you need to open a child document. I just want to permanently remove the document. Any idea’s on how to remove these documents.

Subject: Simple agent

Write a simple agent that changes the form to “Memo” and then find these docs in the all docs view and delete them

Subject: Or one that checks for all children

and deletes them first