Been there, done that, not once but twice. Really nice local farmer; he put an ad in the paper saying that he would be happy to store hay for people year round in his barn and deliver it at regular intervals as long as it was paid for in advance.
Perfect! We have money in summer but are always broke in winter, and had no place to store quantities of hay. So we bought a year's worth of hay for two horses (700 bales of orchard grass). At first all was well and he'd deliver once a month, but then... we had to start picking it up, and then.. well, it was over in that barn, or across that field, and then there was no hay at all. He said he would love to give us our money back, but he didn't have it, so could we please wait until next year? Oookkaayyy....
So the next year, he showed us the hay, and we bought enough more to cover the coming year, and guess what? No Hay!!! Now we've moved, and so are driving over an hour to consistently get no hay. Finally he said he just had no hay, and please don't call until April, when he thought he could get some. So, I double bought hay all winter, second winter in a row, and when I called the last day in April, he said that if he'd known it was me, he wouldn't have answered the phone.
THEN I found out he absolutely had hay, and was selling it locally. He sold a pile to my sister, not realizing we were related. He also left his hay elevator in my sister's yard. He still owed us over $700.00 in hay, so, guess who has the hay elevator now?