As reported by the Norwegian newspaper VG (VG's Wiki) and passed along by Daily Kos, in 1988 law student Barack Obama helped out a woman about to fly to Norway by paying an unexpected $103 fee she couldn't afford.
He helped her; she got to Norway and paid him back; and 18 years later, in 2006, the woman's parents wrote then-Sen. Obama thanking him for his help. And now it's remembered again. I wanted to share that.
(Link found in this entry by cmpriest)