Characters
On second thought Camelot's a silly place.
— Arthur · Monty Python and the Holy Grail

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The phrase “on second thought” introduces a quick reversal, and the judgment that follows is bluntly ordinary. Camelot is dismissed as silly, with no elaborate explanation. That casual verdict gives the line its comic economy, shrinking a grand-sounding place to something hardly worth taking seriously.
Context reviewed