This pragma enforces coding standards and promotes best-practices by
running your file through Perl::Critic before every execution. In a
production system, this usually isn't feasible because it adds a lot of
overhead at start-up. If you have a separate development environment, you
can effectively bypass the criticism pragma by not installing Perl::Critic
in the production environment. If Perl::Critic can't be loaded, then
criticism just fails silently.