In her book "Eats, Shoots & Leaves: The Zero Tolerance Approach to Punctuation," Lynne Truss shares an interesting story about a shopkeeper in Bristol. This clever shopkeeper employed a unique marketing strategy by placing deliberately ungrammatical signs in his window. The intention behind this ruse was to attract passersby who would notice the mistakes and come in to complain.

Once inside the shop, the shopkeeper would engage them in conversation, turning their initial frustration into a friendly interaction. This tactic proved effective as he was able to persuade the visitors to make a purchase. This anecdote illustrates the intersection of language, consumer behavior, and salesmanship, showcasing how even errors can be leveraged for successful marketing.