I have no idea who Nathaniel Flemming is or the circumstances under which he got his free cider from the folks at Grinder but this note is lovely.
This simple gift probably cost pennies upfront but will be worth so much more in the long run.
The boy and his family will probably tell the story of how Nathaniel got a free tasty cider to their friends. They'll check out the place for themselves. The family will choose Grinder over other similar businesses. Everyone who reads the note will be reminded that the shop isn't part of a faceless corporation, but a part of their community. All because of a simple act of kindness.
Plus, they make a killer latté.