p4raw-id: //depot/perl@16205
would inherit their base classes' overload definitions? What to do
in case of overload conflicts?
+=head2 Taint rethink
+
+Should taint be stopped from affecting control flow, if ($tainted)?
+Should tainted symbolic method calls and subref calls be stopped?
+(Look at Ruby's $SAFE levels for inspiration?)
+
=head1 Vague ideas
Ideas which have been discussed, and which may or may not happen.