People assume path == "external URL"

criticality: 
Moderate
Drupal7: 
Open
Task: 
Create a left-sidebar menu link

Multiple people assumed the path field was looking for a full URL to their content. Lots of people used the full http://site.com/node/x link to add a menu item.

Solution: 
Improve the provided help text. Also auto-detect if a user enters a full URL to their site. In the event that they have entered a full URL and it matches a internal Drupal path, we should be cleaning the user supplied information to use the internal Drupal path.