One day, while Sue was cleaning under the bed, she found a small box.

Curious, she opened it and found 3 eggs and 10,000 dollars. 

A little bit suspicious, she confronted her husband of twenty years about it. 

"Oh, that," Frank said. "Every time I cheated on you, I put an egg in this box." 

Sue was a bit unhappy about this, but figured that 3 affairs over twenty years wasn't so bad. 

"But what about the 10,000 dollars?" 

"Every time I got a dozen, I sold them."