What is the fine-grained topic of the following text: I’d like to thank Andrew Dunn, a complete stranger to me, for his magnanimous gesture of lending me $50 at Whitfield (where I learnt of the lost wallet), which at least allowed me to buy enough petrol and food to get me to Melbourne, where my equally generous daughter, Marnie, lent me her credit card and $600. Only return the topic.
Gratitude towards generosity of strangers and family members in a financial predicament