I agree. You'd basically have to rewrite the perl interpreter so that can run a copy of itself as child process in a sandbox and only return a safe, sanitized hashref. To quote RFC1925:

   (5)  It is always possible to aglutenate multiple separate problems
        into a single complex interdependent solution. In most cases
        this is a bad idea.
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With enough software engineering, this is certainly possible, at least to a certain extend, but

   (3)  With sufficient thrust, pigs fly just fine. However, this is
        not necessarily a good idea. It is hard to be sure where they
        are going to land, and it could be dangerous sitting under the
+m
        as they fly overhead.
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