Sexual urge!
On their wedding night, the young bride told her groom, "Since we're married now, we can arrange our sex life like this: In the evening if my hair is done, that means I don't want sex at all.
If my hair is somewhat undone, that means I may or may not have sex. Lastly if my hair is completely undone, that means I want sex."
The groom replied, "Okay sweetheart. Just make sure that when I come home, I usually have a drink.
If I have only one drink, that means I don't want sex. If I have two drinks, I may or may not be wanting sex.
But if I drink more than two, your hair won't matter...
