"Don't clap too hard - it's a very old building"

In this quote, John Osborne is warning versus extreme enthusiasm or celebration. The phrase "clap too difficult" can be interpreted as a metaphor for being excessively passionate or showing excessive support. By stating "it's a very old structure," Osborne is implying that the things of the clapping, whether it be a person or a concept, is vulnerable and need to be treated with care. This quote could also be viewed as a commentary on the fragility of tradition and the significance of protecting history. In general, Osborne is advising us to be conscious and respectful of the past, even in moments of enjoyment or pleasure.