questions about packages

[SANDRA <LOOSEMORE@UTAH-20.ARPA>]

1.  Can a package use itself?  Or is this "an error"?

2.  Does the :use argument to in-package default to the list of the
    lisp package in the same way that it does for make-package?  In
    other words, if you do (in-package 'foo) and package foo does not
    yet exist, does it default to using the lisp package?  What if
    package foo does exist but doesn't already use the lisp package?

-Sandra
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