OK, this is a bit convoluted, but here goes:

We have a client that has policies associated to a context via Zenworks.
If the users in that context log in, all is well and the policies work
great. The problem is that the users have figured out that if they login
as a different user (library, which is a generic login account) that
doesn't exist in their context, the Novell Client will search up the tree
until it finds the context that the library user belongs to and proceeds to
log them in there (with less restrictive policies). Is there a way to
force the context on the workstation so if they do login in as library it
will time out and not walk up the tree?