Autocroaking

You often like to use carp and croak to issue error messages
These are defined in Carp.pm:

        use Carp qw(carp croak);

Issuing an error message is usually unusual
Why load Carp unless it is necessary?

     if (some unlikely error condition occurs) {
       require Carp;
       Carp::croak("Millions for defense, but not one cent for tribute");
     }