There may also be times when you want to perform a one-time "stubless deletion" -- for instance if you need to kill some badly-mangled documents in one replica without deleting them from all replicas, but you also need other documents in the same replica to be available for replication. Julian Robichaux has provided a method for this on his NSFTools site:
http://www.nsftools.com/tips/APITips.htm#stublessdelete