He quickly headed up the stairs, stepping over toys and more piles of clothes, looking for his wife. He was worried she might be ill, or that something serious had happened. He was met with a small trickle of water as it made its way out the bathroom door. As he peered inside he found wet towels, scummy soap and more toys strewn over the floor. Miles of toilet paper lay in a heap and toothpaste had been smeared over the mirror and walls.
As he rushed to the bedroom, he found his wife still curled up in the bed in her pyjamas, reading a novel. She looked up at him, smiled, and asked how his day went. He looked at her bewildered and asked, "What happened here today?" She again smiled and answered, "You know every day when you come home from work and you ask me what in the world did I do today?" "Yes," was his incredulous reply. She answered, "Well, today I didn't do it."
Source: unknown (something I received in an email once)