One summer evening during a voilent thunderstorm, a mother was tucking her son into bed. She was about to turn off the light when he asked with a tremor in his voice: "Mummy, will you sleep with me tonight?"
The mother smiled and gave him a reassuring hug. "I can't dear," she said. "I have to sleep in Daddy's room."
A long silence was broken at last by his shaky little voice: "The big sissy."