I had that happen to me at one of my yard sales several years ago...I said to them: "If you don't plan on paying for that, put in back on the table on your way out, there's nothing else here you would be interested in either." They were so shocked that I confronted them, they just sat the entire bag down (including a blouse they had previously purchased or stolen next door) and left. And you usually get, oh I thought my husband, sister, mother paid you already. But this lady said nothing - she was publicly embarrassed. (And that's ok with me!)
I would offer your fabrics here for a much more satisfying experience
