> Question - wouldn't this be a good ability to add as a
> standard feature in Maxima
> ... Also, maybe it would be useful to have two degrees
> of protection?
No, I don't think it should be added as a standard feature -- we have
enough random, ad hoc features. Especially not a two-level scheme.
If things like this are to be added, they should be part of some
coherent scheme.
-s