While going through his wife's dresser drawers, a farmer discovered three soybeans and an envelope containing $30 in cash. The farmer confronted his wife, and when asked about the curious items, she confessed:
"Over the years, I haven't been completely faithful to you."
"Whenever I fooled around, I put a soybean in the drawer to remind myself of my indiscretion," she explained.
The farmer admitted that he hadn't always been faithful either, and was inclined to forgive and forget a few moments of weakness in his wife.
"I'm curious though," he said, "Where did the thirty dollars come from?"
"Oh that, " his wife replied, "Well, when soybeans hit ten dollars a bushel, I sold out!"