In the book "Summer Lightning" by P.G. Wodehouse, the character Hon. Galahad conveys a humorous take on society's expectations regarding evidence and formality in legal matters. His remark implies that one does not necessarily need the traditional hallmarks of authority, such as a judge's hat, to address a serious accusation like pig theft. This suggests a critique of the rigidity of social norms.

Wodehouse's writing often showcases the absurdities within social conventions. Galahad, being well-acquainted with societal rules, points out that sometimes practicality should take precedence over formality. The quote reflects a broader theme of challenging the constraints imposed by society and highlights the absurdity of adhering strictly to them.