Sasha from Dominican Republic is one such person. Simple and very good.
A few hours in his company make you feel better. Just because he’s a nice and interesting, clever and intelligent.
I didn’t pack the right charger for my then new Canon camera. Without any hope, I posted in a local Russian-speaking forum asking for help. Amazingly, in a few hours my camera was charged.

We call people like that “Kulibin”. I am proud to have him as a friend since then.

We had a dinner together that day, and then I went on to another part of the island, where the beaches are even better than where he lives.