What a beautiful story! It just renews my faith in humans. I think your donation and letter idea is excellent.

Last year, as John and I were putting groceries in my car, I noticed a nice, big 'ole flat. Just as I let out an expletive, 2 guys got out of their car, next to me, and instantly pumped up the tire with some gizmo that allows you to drive at least 10 miles. Anyway, like you, we couldn't stop thanking them profusely. They thought it was no big deal. I always try to pay it back.

I hope your guys get a little extra somethin, somethin in their stockings!