When I asked my wife to marry me some 35 years ago, I bought her a very expensive (to me, at the time) engagement ring, made even more precious (to me) by having the jeweler add some diamonds to the central stone that had been in my family. My wife accepted, and a few days later went to Disneyland with some friends (the trip was already planned, and wasn't related to our engagement.

) While there, she used a restroom and took the ring off to wash her hands...and forgot it. She realized it just after she left the restroom, and went back to get it, but it was gone.
She was crying hysterically just outside the restroom, and her friends were trying to comfort her, when an older lady approached the group asking what was wrong. Her friends explained, and the woman took out a large ball of tissue from her purse, unwrapped it, and asked "Is this it?"
To this day, I wonder about the woman's intentions...and why she had wrapped it up in so much tissue. However, when she saw how heartbroken my wife was, she did the right thing. I'd also like to think I would have been forgiving of my fiancee losing such an expensive and meaningful (to me) ring a few days after I gave it to her...fortunately I didn't have to find out. She has forgiven me much over the course of our marriage, so I'd like to think that I would have been, and wouldn't have missed being married to this wonderful woman over a material thing.