[Zope] Deleting objects from an external method

[Nikko Wolf]

I'm trying to allow users to delete objects that have been accidentally 
created.  I have criteria for what that means, but since I *DO NOT* want 
them to delete object except by this method, I want to avoid granting 
"Delete objects" to them (non-Managers).

Can this even be done?  At the base level, "Delete objects" is a 
hard-coded requirement of the ObjectManager.manage_delObjects() function.

One solution that I considered is to create a new role with the 
privilege, then within my ExternalMethod:
  - grant the role to the user for the folder,
  - delete the object,
  - remove the role for that user for the folder

But this seems overly tedious, and a problem if the script terminates 
before removing the role.  Similarly, it could use the Manager role in 
the same scenario, but this seems dangerous.

Any insights appreciated,
Nikko

PS: This seems on-topic, but using the code shown did not seem to have 
any effect:

     http://mail.zope.org/pipermail/zope/2003-October/142887.html