Mate bought a second hand 3500 Rover many years ago. nice car, upgraded V8, all the good gear. Whilst vacuuming the front seats he heard a small "splat" as something landed in the cleaner bin. Being an inquisitive sod, he emptied the cleaner bin and found a diamond as big as the finger nail on your little finger at the bottom. When he rang the previous owner (he was stuuuupid also) they told him he had found the long lost rock of the wifes engagement ring. Insurance Value prevously paid out ( in the early 90's ) was $18,000. They took the rock back without offering any reward!!
When he asked my what i woulda done, I said at least you can sleep soundly at night, not like some other &%$@s!!