A father sends a small boy to bed. Five minutes later....

"I'm thirsty. Can you bring drink of water?"
"No. You had your chance. Lights out."

Five minutes later:

"I'm THIRSTY. Can I have a drink of water??"
"I told you NO!" If you ask again, I'll have to spank you!!"

Five minutes later......

"When you come in to spank me, can you bring a drink of water?"