It turns out that Wally had read an article that said, 'Wives who work full-time and had to do their own housework were too tired to have sex'.
The night went very well. The next day, she told her golfing friends all about it. 'We had a great dinner. Wally even cleaned up the kitchen. He helped the kids do their homework, folded all the laundry and put it away. I really enjoyed the evening.'
'But what about afterward' asked her friends?
'Oh, that ..., Wally was too tired..'