A woman thought I didn't have enough money to pay my bus fare this morning and offered to give me some.
I'd never seen her before in my life (I was at a different bus stop to normal) and could have been anyone. The thing that bugged me was that by the time I'd really realised what a kind gesture she'd made, I was off that bus and stopping the next (which was run by the company I normally use and a lot cheaper). So I didn't really say thank you. I wish I had. I hope my seeming lack of generosity doesn't put her off doing such a kind thing again.