Helping husband

While I was doing some research on how to get husband to help around the house, one wife told me that her husband take care of their children, cooked meals, shooped, cleaned and did the laundry for two weeks.
"He read somewhere that if a wife isn't too tired, she makes a better patner in bed," she said.
"Did it work?" I asked.
"Not really," she sighed. "He was too tired."