My mom grew up in Hong Kong in the 1960s. She lived with her parents and six siblings in an apartment on the eighth floor of a concrete building. Their mom (my grandma) was a housewife. Based on the stories, it seems she spent a good ninety percent of her day cooking and feeding everyone.
But food also came from other sources. And entertainment too.
Enter the flying olives.
In the 1960s, vendors of homemade preserved olives would come around these apartment blocks like clockwork touting their wares. Unlike ice cream trucks, they didn’t have a catchy jingle, but they did have trumpets.