In these circumstances I would have politely explained that I don't have the 20p with me, but will pay twice next time through. Surely that is a reasonable compromise?
Sounds like a nice extension to your ride though so everyones a winner I suppose![]()
I have given out over 20 inner tubes, even fitted them for most people, along with tea/coffee, cold drinks and cakes, since I moved to this spot. Despite all the cyclists promising to return with goodies not one has, did have a nice card from one nice couple from afar though.