Messages Just Work™ With Subclassing

package Your::Pirate::Point;
use base 'Your::Point';

our $MESSAGES = {
    missing => "Avast!  You be missin' ye old %s value.  Arrrr!",
Thus Spake Andy:

The only downside to the previous approach is that you're messing around with the "original" $MESSAGES hash. What if you want only some of your points to have the new piratey error message, and others to have the default? Well Badger makes that easy. Simply create a subclass of your original point module and define a new set of $MESSAGES in the subclass. Now Your::Pirate::Point instances will use the new piratey messages without affecting the behaviour of the base class Your::Point class.