Seven or eight years ago, I was on a commuter flight, sitting in an aisle seat. Two rows ahead of me, across the aisle on my right, a guy was arguing with his wife/girlfriend. It wasn't a ferocious argument, but any sort of personal disagreement is noticeable in these circumstances, and it had been simmering since I noticed them boarding the plane.
There were two other things I noticed when they sat down. The wife/girlfriend had the husband/boyfriend's name - Randy - tattooed on the back of her neck, and Randy had the letters T - R - U - S - T tattooed on the fingers of his left hand. I remember smiling to myself when I saw this. Obviously these two were from a very different background than me, but I really appreciated the public display of commitment they had made by getting these tattoos. I remember thinking to myself that I bet their relationship was a strong one, even though the disagreement seemed to simmer throughout the flight.
The plane landed and we all stood up. And then I saw the letters tattooed on Randy's right hand.