I hate yard sales! I've had two in my life and want no more. My niece had one last year to help make money for college expenses and can you believe some old women stopped and stole things from her! A car full pulled up and when they left, she noticed several things had been taken.
I've had this happen, not with a little old lady though, but with a group where one distracts you asking about price while another takes off with something. Don't realize it's gone till they are.
My mother had one too. I think she said it was a man, wanting to buy a salt and pepper shaker of cats but not pay the price. So he stole one and came back the next day to see if my mom would sell the remaining one for half price! She didn't lol and he bought that one for full price.
So no biggy, but the nerve!
So I'm generally not too keen on hosting them. I do occasionally go to them (almost always with my mom or sister, who both like to catch deals) and who I can leave any negotiating stuff to, as that's really not my thing.
I'm a browser at heart.