A perl module to react in some fashion when users root around inside your objects instead of using those beautiful accessor methods you took all that effort to provide. Installation proceeds in the usual fashion: perl Makefile.PL make make test # Except there are no tests :( make install Or get it from the CPAN. This module is licensed under the WTFPL version 2 because licenses are for lawyers not engineers. Use this code or don't, it's all the same to me.