Unexpected Christmas Generosity

For the past 4 years or so on most Tuesdays walking down to school we have been passed by a retired man in a paprika fiesta. At some point we started waving to the car & once we spoke to the gentleman briefly in a shop. This morning he pulled over and gave us £20 for the boys for Christmas. I was a bit gobsmacked and probably not grateful enough at the time for his unexpected kindness. The boys were unsurprisingly thrilled! Now to try and find out where he lives to send him a thank you card!