Laugh a little
"What do you want?" asks his father.
"I'm thirsty daddy," replies Simon, "can you bring me up a glass of water?"
"No," says his father, "you had your chance earlier. Now get to bed and turn off the light."
A few minutes later, "Daddy, oh daddy"
"WHAT DO YOU WANT?" shouts his father.
"I told you, daddy, I'm very thirsty. Can I please have a drink of water?"
"I’ve already told you the answer. If you ask again, you’ll be punished."
Again, a few minutes later, "Daddy, oh daddy"
"WHAT IS IT THIS TIME?" shouts his father.
"When you come upstairs to punish me, daddy, can you bring a drink of water with you?"