Question: I have a connection between a Drupal User and a CiviCRM contact that I would like to remove. I found [this Q&A](https://civicrm.stackexchange.com/questions/3878/how-to-disconnect-civi-contact-record-from-drupal-user) which describes how to do that on the database level. 

I was however wondering if there is any way to do that via the UI. Any hints? (Using CiviCRM 4.6.9 and latest Drupal.)

Answer: 
This is just a top-of-the-head thought and I am not sure I've thought through all the ramifications, but could you: 

1. Create a new contact (blank, essentially, or with the same name)
2. Run a search that pulls both of these, and select to merge them
3. Flip the contacts so the old contact is considered the duplicate contact
4. Check the boxes to transfer all the info **except the Drupal user** to the new contact in the process of merging?

Test first, obviously!
There is no way to do this via the UI. I am not sure what to suggest if you don't have easy access to the db.