A father tucks his young son into bed, kisses him on the forehead, turns out the light and says goodnight.
Sitting watching a ballgame on TV in the living room the father hears from the bedroom, "Daddy can I have a glass of water?"
"No, if you drink water now you'll wet the bed tonight. Go to sleep now son."
A few minutes later, "Daddy, may I please have a glass of water?'
"No you may not, now go to sleep!"
A few minutes later, "Daddy may I pleeease have a glass of water?"
"No! And if I hear another word out of you tonight you're gonna get a spanking!"
A few minutes later, "Daddy, when you come in here to give me a spanking would you bring me a glass of water?"