How to Borrow Money Without Paying It Back

Money has been tight for me lately, and your farm is going like gangbusters. So I wonder, may I please borrow some cash? The fisherman held his breath, awaiting the farmer's reply. All right, sure. I could lend you some cash. Provided you pay me back, of course. Well, one month went by, then two, but the fisherman didn't return. This is strange. Two months have passed, which means two moons have come and gone. And if my idea works, my neighbor will be none the wiser. But I'll be all the richer.