diff -r 7aef36e912bb -r 06ed84dbb1ed app/soc/logic/models/host.py
--- a/app/soc/logic/models/host.py	Fri Mar 20 16:54:01 2009 +0000
+++ b/app/soc/logic/models/host.py	Fri Mar 20 18:53:37 2009 +0000
@@ -35,12 +35,14 @@
   """
 
   def __init__(self, model=soc.models.host.Host, 
-               base_model=soc.models.role.Role, scope_logic=sponsor_logic):
+               base_model=soc.models.role.Role, scope_logic=sponsor_logic,
+               disallow_last_resign=True):
     """Defines the name, key_name and model for this entity.
     """
 
     super(Logic, self).__init__(model=model, base_model=base_model,
-                                scope_logic=scope_logic)
+                                scope_logic=scope_logic,
+                                disallow_last_resign=disallow_last_resign)
 
 
   def _onCreate(self, entity):