Child sent to bed

A small boy is sent to bed by his father... [Five minutes later] "Da-ad..." "What?" "I'm thirsty. Can you bring me a drink of water?" "No. You had your chance. Lights out." [Five minutes later] "Da-aaaad..." "WHAT?" "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] "Daaaa-aaaAAAAD..." "WHAT??!!" "When you come in to spank me, can you bring me a drink of water?"