I was moving a few years ago and set up a yard sale with a few neighbors. One of the items I had was a woman's CZ engagement ring, appx. 1 ct. I was asking a whole $10.00 for it (but didn't have a price tag on it).
Some old geez, looked like someone's grandpa, tried to shoplift it! My girlfriend yelled to me (I was with another...(cough,cough) "customer") "that guy has your ring". He was walking back to his car.
I jacked him as he got in the car (which was a nice Caddy or Lincoln) and he said "what ring?". I pulled him out of the car and started patting him down, holding him by the scruff of his neck. He started crying "don't hurt me, don't hurt me".
I couldn't find the ring and, as I shoved him back in the car, I saw something gleaming in the space between the driver's seat and the door...there was the ring, right where he dropped it.
I gave him a half slap/half punch in the face and told him if I ever see him in the neighborhood, I'd beat his azz purple.
Dude probably still thinks to this day he almost got away with a $10k diamond ring from a yard sale...